]*>(.*?)<\s*\/\s*script\s*>/is', '', $html);
return $html;
}
public static function remove_styles($html){
$html = preg_replace('/<\s*style[^>]*>(.*?)<\s*\/\s*style\s*>/is', '', $html);
return $html;
}
public static function remove_comments($html){
return preg_replace('//s', '', $html);
}
private static function find($selector, $html, $start_from = 0){
$html = substr($html, $start_from);
$inner_start = 0;
$inner_end = 0;
$pattern = '//';
if(substr($selector, 0, 1) == '#'){
$pattern = '/<(\w+)[^>]+id="'.substr($selector, 1).'"[^>]*>/is';
} else if(substr($selector, 0, 1) == '.'){
$pattern = '/<(\w+)[^>]+class="'.substr($selector, 1).'"[^>]*>/is';
} else {
return false;
}
if(preg_match($pattern, $html, $matches, PREG_OFFSET_CAPTURE)){
$outer_start = $matches[0][1];
$inner_start = $matches[0][1] + strlen($matches[0][0]);
// tag stuff
$tag_name = $matches[1][0];
$tag_len = strlen($tag_name);
$run_count = 300;
// "open" 0){
$open_tag = strpos($html, "<{$tag_name}", $start);
$close_tag = strpos($html, " $outer_start + $start_from,
'inner_start' => $inner_start + $start_from,
'inner_end' => $inner_end + $start_from,
'outer_end' => $outer_end + $start_from
);
}
return false;
}
public static function extract_inner($selector, $html){
return self::extract($selector, $html, true);
}
public static function extract_outer($selector, $html){
return self::extract($selector, $html, false);
}
private static function extract($selector, $html, $inner = false){
$pos = 0;
$limit = 300;
$result = array();
$data = false;
do {
$data = self::find($selector, $html, $pos);
if($data){
$code = substr($html, $inner ? $data['inner_start'] : $data['outer_start'],
$inner ? $data['inner_end'] - $data['inner_start'] : $data['outer_end'] - $data['outer_start']);
$result[] = $code;
$pos = $data['outer_end'];
}
} while ($data && --$limit > 0);
return $result;
}
public static function remove($selector, $html){
return self::replace($selector, '', $html, false);
}
public static function replace_outer($selector, $replace, $html, &$matches = NULL){
return self::replace($selector, $replace, $html, false, $matches);
}
public static function replace_inner($selector, $replace, $html, &$matches = NULL){
return self::replace($selector, $replace, $html, true, $matches);
}
private static function replace($selector, $replace, $html, $replace_inner = false, &$matches = NULL){
$start_from = 0;
$limit = 300;
$data = false;
$replace = (array)$replace;
do {
$data = self::find($selector, $html, $start_from);
if($data){
$r = array_shift($replace);
// from where to where will we be replacing?
$replace_space = $replace_inner ? $data['inner_end'] - $data['inner_start'] : $data['outer_end'] - $data['outer_start'];
$replace_len = strlen($r);
if($matches !== NULL){
$matches[] = substr($html, $replace_inner ? $data['inner_start'] : $data['outer_start'], $replace_space);
}
$html = substr_replace($html, $r, $replace_inner ? $data['inner_start'] : $data['outer_start'], $replace_space);
// next time we resume search at position right at the end of this element
$start_from = $data['outer_end'] + ($replace_len - $replace_space);
}
} while ($data && --$limit > 0);
return $html;
}
}
?>