PHP屏蔽HTML标签函数

//去掉所有HTML标签
function html2txt($document){
$search = array(‘@<script[^>]*?>.*?</script>@si’, // Strip out javascript
               ‘@<style[^>]*?>.*?</style>@siU’,    // Strip style tags properly
               ‘@<[\/\!]*?[^<>]*?>@si’,            // Strip out HTML tags
               ‘@<![\s\S]*?–[ \t\n\r]*>@’        // Strip multi-line comments including CDATA
);
$text = preg_replace($search, ”, $document);
return $text;
}