php正则过滤html标签

小灰灰 2022-05-21 11:44 257阅读 0赞

<?php  
$str=preg\_replace("/s+/", " ", $str); //过滤多余回车  
$str=preg\_replace("/<\[ \]+/si","<",$str); //过滤<\_\_("  
<"号后面带空格)  
$str=preg\_replace("/<!–.\*?–>/si","",$str); //注释  
$str=preg\_replace("/<(!.\*?)>/si","",$str); //过滤  
DOCTYPE  
$str=preg\_replace("/<(/?html.\*?)>/si","",$str); //过滤html标签  
$str=preg\_replace("/<(/?br.\*?)>/si","",$str); //过滤br标签  
$str=preg\_replace("/<(/?head.\*?)>/si","",$str); //过滤head标签  
$str=preg\_replace("/<(/?meta.\*?)>/si","",$str); //过滤meta标签  
$str=preg\_replace("/<(/?body.\*?)>/si","",$str); //过滤body标签  
$str=preg\_replace("/<(/?link.\*?)>/si","",$str); //过滤link标签  
$str=preg\_replace("/<(/?form.\*?)>/si","",$str); //过滤form标签  
$str=preg\_replace("/cookie/si","COOKIE",$str); //过滤COOKIE标签  
$str=preg\_replace("/<(applet.\*?)>(.\*?)<(/applet.\*?)>/si","",$str); //过滤applet标签  
$str=preg\_replace("/<(/?applet.\*?)>/si","",$str); //过滤applet标签  
$str=preg\_replace("/<(style.\*?)>(.\*?)<(/style.\*?)>/si","",$str); //过滤style标签  
$str=preg\_replace("/<(/?style.\*?)>/si","",$str); //过滤style标签  
$str=preg\_replace("/<(title.\*?)>(.\*?)<(/title.\*?)>/si","",$str); //过滤title标签  
$str=preg\_replace("/<(/?title.\*?)>/si","",$str); //过滤title标签  
$str=preg\_replace("/<(object.\*?)>(.\*?)<(/object.\*?)>/si","",$str); //过滤object标签  
$str=preg\_replace("/<(/?objec.\*?)>/si","",$str); //过滤object标签  
$str=preg\_replace("/<(noframes.\*?)>(.\*?)<(/noframes.\*?)>/si","",$str); //过滤noframes标签  
$str=preg\_replace("/<(/?noframes.\*?)>/si","",$str); //过滤noframes标签  
$str=preg\_replace("/<(i?frame.\*?)>(.\*?)<(/i?frame.\*?)>/si","",$str); //过滤frame标签  
$str=preg\_replace("/<(/?i?frame.\*?)>/si","",$str); //过滤frame标签  
$str=preg\_replace("/<(script.\*?)>(.\*?)<(/script.\*?)>/si","",$str); //过滤script标签  
$str=preg\_replace("/<(/?script.\*?)>/si","",$str); //过滤script标签  
$str=preg\_replace("/javascript/si","Javascript",$str); //过滤javascript标签  
$str=preg\_replace("/vbscript/si","Vbscript",$str); //过滤vbscript标签  
$str=preg\_replace("/on(\[a-z\]+)s\*=/si","On\\1=",$str); //过滤script标签  
$str=preg\_replace("/&\#/si","&＃",$str); //过滤script标签，  
?>  
关键词： PHP 正则表达式