PHP正则过滤html标签
$content=preg_replace(“/\s+/”, ” “, $content); //过滤多余回车
$content=preg_replace(“/<[ ]+/si","<",$content); //过滤<__("<"号后面带空格)
$content=preg_replace("/<\!--.*?-->/si”,”",$content); //注释
$content=preg_replace(“/<(\!.*?)>/si”,”",$content); //过滤DOCTYPE
$content=preg_replace(“/<(\/?html.*?)>/si”,”",$content); //过滤html标签
$content=preg_replace(“/<(\/?head.*?)>/si”,”",$content); //过滤head标签
$content=preg_replace(“/<(\/?meta.*?)>/si”,”",$content); //过滤meta标签
$content=preg_replace(“/<(\/?body.*?)>/si”,”",$content); //过滤body标签
$content=preg_replace(“/<(\/?link.*?)>/si”,”",$content); //过滤link标签
$content=preg_replace(“/<(\/?form.*?)>/si”,”",$content); //过滤form标签
$content=preg_replace(“/cookie/si”,”COOKIE”,$content); //过滤COOKIE标签
$content=preg_replace(“/<(applet.*?)>(.*?)<(\/applet.*?)>/si”,”",$content); //过滤applet标签
$content=preg_replace(“/<(\/?applet.*?)>/si”,”",$content); //过滤applet标签
$content=preg_replace(“/<(style.*?)>(.*?)<(\/style.*?)>/si”,”",$content); //过滤style标签
$content=preg_replace(“/<(\/?style.*?)>/si”,”",$content); //过滤style标签
$content=preg_replace(“/<(title.*?)>(.*?)<(\/title.*?)>/si”,”",$content); //过滤title标签
$content=preg_replace(“/<(\/?title.*?)>/si”,”",$content); //过滤title标签
$content=preg_replace(“/<(object.*?)>(.*?)<(\/object.*?)>/si”,”",$content); //过滤object标签
$content=preg_replace(“/<(\/?objec.*?)>/si”,”",$content); //过滤object标签
$content=preg_replace(“/<(noframes.*?)>(.*?)<(\/noframes.*?)>/si”,”",$content); //过滤noframes标签
$content=preg_replace(“/<(\/?noframes.*?)>/si”,”",$content); //过滤noframes标签
$content=preg_replace(“/<(i?frame.*?)>(.*?)<(\/i?frame.*?)>/si”,”",$content); //过滤frame标签
$content=preg_replace(“/<(\/?i?frame.*?)>/si”,”",$content); //过滤frame标签
$content=preg_replace(“/<(script.*?)>(.*?)<(\/script.*?)>/si”,”",$content); //过滤script标签
$content=preg_replace(“/<(\/?script.*?)>/si”,”",$content); //过滤script标签
$content=preg_replace(“/javascript/si”,”Javascript”,$content); //过滤script标签
$content=preg_replace(“/vbscript/si”,”Vbscript”,$content); //过滤script标签
