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php过滤html标签、属性等正则表达式汇总
$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(
清除空格，换行
function deletehtml($str){$str = trim($str);$str = strip_tags($str,"");$str = ereg_replace("\t","",$str);$str = ereg_replace("\r\n","",$str);$str = ereg_replace("\r","",$str);$str = ereg_replace("\n","",$str);$str = ereg_replace(" "," ",$str);return trim($str);}
过滤html属性
1，过滤所有html标签的正则表达式：
</?[^>]+> //过滤所有html标签的属性的正则表达式： $html = preg_replace("/<([a-za-z]+)[^>]*>/","<\\1>",$html);
以上就是php如何使用正则去掉html属性的详细内容。