$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:
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