php正则过滤html标签、空格、换行
2016-04-27 17:22
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$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
$str=preg_replace("/<(\/?head.*?)>/si","",$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script标签
$str=preg_replace("/vbscript/si","Vbscript",$str);//过滤script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,如javAsCript:alert(
$str=preg_replace("/<[]+/si","<",$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
$str=preg_replace("/<(\/?head.*?)>/si","",$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script标签
$str=preg_replace("/vbscript/si","Vbscript",$str);//过滤script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,如javAsCript:alert(
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