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<?php
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/*******************************************************************************
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Version: 1.11 ($Rev: 175 $)
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Website: http://sourceforge.net/projects/simplehtmldom/
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Author: S.C. Chen <me578022@gmail.com>
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Acknowledge: Jose Solorzano (https://sourceforge.net/projects/php-html/)
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Contributions by:
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Yousuke Kumakura (Attribute filters)
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Vadim Voituk (Negative indexes supports of "find" method)
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Antcs (Constructor with automatically load contents either text or file/url)
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Licensed under The MIT License
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Redistributions of files must retain the above copyright notice.
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*******************************************************************************/
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define('HDOM_TYPE_ELEMENT', 1);
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define('HDOM_TYPE_COMMENT', 2);
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define('HDOM_TYPE_TEXT', 3);
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define('HDOM_TYPE_ENDTAG', 4);
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define('HDOM_TYPE_ROOT', 5);
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define('HDOM_TYPE_UNKNOWN', 6);
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define('HDOM_QUOTE_DOUBLE', 0);
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define('HDOM_QUOTE_SINGLE', 1);
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define('HDOM_QUOTE_NO', 3);
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define('HDOM_INFO_BEGIN', 0);
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define('HDOM_INFO_END', 1);
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define('HDOM_INFO_QUOTE', 2);
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define('HDOM_INFO_SPACE', 3);
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define('HDOM_INFO_TEXT', 4);
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define('HDOM_INFO_INNER', 5);
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define('HDOM_INFO_OUTER', 6);
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define('HDOM_INFO_ENDSPACE',7);
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// helper functions
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// -----------------------------------------------------------------------------
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// get html dom form file
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function file_get_html() {
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$dom = new simple_html_dom;
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$args = func_get_args();
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$dom->load(call_user_func_array('file_get_contents', $args), true);
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return $dom;
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}
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// get html dom form string
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function str_get_html($str, $lowercase=true) {
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$dom = new simple_html_dom;
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$dom->load($str, $lowercase);
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return $dom;
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}
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// dump html dom tree
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function dump_html_tree($node, $show_attr=true, $deep=0) {
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$lead = str_repeat(' ', $deep);
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echo $lead.$node->tag;
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if ($show_attr && count($node->attr)>0) {
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echo '(';
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foreach($node->attr as $k=>$v)
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echo "[$k]=>\"".$node->$k.'", ';
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echo ')';
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}
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echo "\n";
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foreach($node->nodes as $c)
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dump_html_tree($c, $show_attr, $deep+1);
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}
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// get dom form file (deprecated)
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function file_get_dom() {
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$dom = new simple_html_dom;
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$args = func_get_args();
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$dom->load(call_user_func_array('file_get_contents', $args), true);
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return $dom;
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}
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// get dom form string (deprecated)
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function str_get_dom($str, $lowercase=true) {
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$dom = new simple_html_dom;
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$dom->load($str, $lowercase);
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return $dom;
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}
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// simple html dom node
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// -----------------------------------------------------------------------------
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class simple_html_dom_node {
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public $nodetype = HDOM_TYPE_TEXT;
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public $tag = 'text';
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public $attr = array();
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public $children = array();
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public $nodes = array();
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public $parent = null;
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public $_ = array();
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private $dom = null;
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function __construct($dom) {
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$this->dom = $dom;
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$dom->nodes[] = $this;
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}
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function __destruct() {
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$this->clear();
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}
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function __toString() {
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return $this->outertext();
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}
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// clean up memory due to php5 circular references memory leak...
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function clear() {
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$this->dom = null;
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$this->nodes = null;
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$this->parent = null;
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$this->children = null;
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}
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// dump node's tree
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function dump($show_attr=true) {
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dump_html_tree($this, $show_attr);
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}
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// returns the parent of node
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function parent() {
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return $this->parent;
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}
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// returns children of node
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function children($idx=-1) {
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if ($idx===-1) return $this->children;
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if (isset($this->children[$idx])) return $this->children[$idx];
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return null;
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}
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// returns the first child of node
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function first_child() {
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if (count($this->children)>0) return $this->children[0];
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return null;
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}
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// returns the last child of node
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function last_child() {
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if (($count=count($this->children))>0) return $this->children[$count-1];
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return null;
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}
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// returns the next sibling of node
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function next_sibling() {
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if ($this->parent===null) return null;
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$idx = 0;
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$count = count($this->parent->children);
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while ($idx<$count && $this!==$this->parent->children[$idx])
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++$idx;
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if (++$idx>=$count) return null;
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return $this->parent->children[$idx];
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}
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// returns the previous sibling of node
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function prev_sibling() {
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if ($this->parent===null) return null;
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$idx = 0;
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$count = count($this->parent->children);
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while ($idx<$count && $this!==$this->parent->children[$idx])
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++$idx;
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if (--$idx<0) return null;
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return $this->parent->children[$idx];
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}
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// get dom node's inner html
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function innertext() {
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if (isset($this->_[HDOM_INFO_INNER])) return $this->_[HDOM_INFO_INNER];
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if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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$ret = '';
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foreach($this->nodes as $n)
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$ret .= $n->outertext();
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return $ret;
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}
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// get dom node's outer text (with tag)
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function outertext() {
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if ($this->tag==='root') return $this->innertext();
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// trigger callback
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if ($this->dom->callback!==null)
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call_user_func_array($this->dom->callback, array($this));
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if (isset($this->_[HDOM_INFO_OUTER])) return $this->_[HDOM_INFO_OUTER];
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if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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// render begin tag
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$ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
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// render inner text
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if (isset($this->_[HDOM_INFO_INNER]))
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$ret .= $this->_[HDOM_INFO_INNER];
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else {
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foreach($this->nodes as $n)
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$ret .= $n->outertext();
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}
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// render end tag
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if(isset($this->_[HDOM_INFO_END]) && $this->_[HDOM_INFO_END]!=0)
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$ret .= '</'.$this->tag.'>';
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return $ret;
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}
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// get dom node's plain text
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function text() {
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if (isset($this->_[HDOM_INFO_INNER])) return $this->_[HDOM_INFO_INNER];
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switch ($this->nodetype) {
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case HDOM_TYPE_TEXT: return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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case HDOM_TYPE_COMMENT: return '';
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case HDOM_TYPE_UNKNOWN: return '';
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}
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if (strcasecmp($this->tag, 'script')===0) return '';
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if (strcasecmp($this->tag, 'style')===0) return '';
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$ret = '';
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foreach($this->nodes as $n)
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$ret .= $n->text();
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return $ret;
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}
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function xmltext() {
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$ret = $this->innertext();
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$ret = str_ireplace('<![CDATA[', '', $ret);
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$ret = str_replace(']]>', '', $ret);
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return $ret;
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}
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// build node's text with tag
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function makeup() {
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// text, comment, unknown
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if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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$ret = '<'.$this->tag;
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$i = -1;
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foreach($this->attr as $key=>$val) {
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++$i;
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// skip removed attribute
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if ($val===null || $val===false)
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continue;
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$ret .= $this->_[HDOM_INFO_SPACE][$i][0];
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//no value attr: nowrap, checked selected...
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if ($val===true)
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$ret .= $key;
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else {
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switch($this->_[HDOM_INFO_QUOTE][$i]) {
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case HDOM_QUOTE_DOUBLE: $quote = '"'; break;
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case HDOM_QUOTE_SINGLE: $quote = '\''; break;
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default: $quote = '';
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}
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$ret .= $key.$this->_[HDOM_INFO_SPACE][$i][1].'='.$this->_[HDOM_INFO_SPACE][$i][2].$quote.$val.$quote;
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}
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}
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$ret = $this->dom->restore_noise($ret);
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return $ret . $this->_[HDOM_INFO_ENDSPACE] . '>';
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}
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// find elements by css selector
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function find($selector, $idx=null) {
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$selectors = $this->parse_selector($selector);
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if (($count=count($selectors))===0) return array();
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$found_keys = array();
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// find each selector
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for ($c=0; $c<$count; ++$c) {
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if (($levle=count($selectors[0]))===0) return array();
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if (!isset($this->_[HDOM_INFO_BEGIN])) return array();
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$head = array($this->_[HDOM_INFO_BEGIN]=>1);
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// handle descendant selectors, no recursive!
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for ($l=0; $l<$levle; ++$l) {
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$ret = array();
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foreach($head as $k=>$v) {
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$n = ($k===-1) ? $this->dom->root : $this->dom->nodes[$k];
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$n->seek($selectors[$c][$l], $ret);
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}
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$head = $ret;
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}
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foreach($head as $k=>$v) {
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if (!isset($found_keys[$k]))
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$found_keys[$k] = 1;
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}
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}
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// sort keys
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ksort($found_keys);
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$found = array();
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foreach($found_keys as $k=>$v)
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$found[] = $this->dom->nodes[$k];
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// return nth-element or array
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if (is_null($idx)) return $found;
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else if ($idx<0) $idx = count($found) + $idx;
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return (isset($found[$idx])) ? $found[$idx] : null;
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}
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// seek for given conditions
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protected function seek($selector, &$ret) {
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list($tag, $key, $val, $exp, $no_key) = $selector;
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// xpath index
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if ($tag && $key && is_numeric($key)) {
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$count = 0;
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foreach ($this->children as $c) {
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if ($tag==='*' || $tag===$c->tag) {
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if (++$count==$key) {
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$ret[$c->_[HDOM_INFO_BEGIN]] = 1;
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return;
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}
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}
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}
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