php正则过滤html标签、空格、换行符的代码(附说明)_php技巧

 <BR>$str=preg_replace("/\s+/", " ", $str); //过滤多余回车 <BR>$str=preg_replace("/<[ ]+/si","<",$str); //过滤<__("<"号后面带空格) <br><br>$str=preg_replace("/<\!--.*?-->/si","",$str); //注释 <BR>$str=preg_replace("//si","",$str); //过滤DOCTYPE <BR>$str=preg_replace("//si","",$str); //过滤html标签 <BR>$str=preg_replace("//si","",$str); //过滤head标签 <BR>$str=preg_replace("//si","",$str); //过滤meta标签 <BR>$str=preg_replace("//si","",$str); //过滤body标签 <BR>$str=preg_replace("//si","",$str); //过滤link标签 <BR>$str=preg_replace("//si","",$str); //过滤form标签 <BR>$str=preg_replace("/cookie/si","COOKIE",$str); //过滤COOKIE标签 <br><br>$str=preg_replace("/(.*?)/si","",$str); //过滤applet标签 <BR>$str=preg_replace("//si","",$str); //过滤appl<strong>2本文来源gaodaima#com搞(代@码$网6</strong><pre>搞gaodaima代码

et标签

$str=preg_replace(“/(.*?)/si”,””,$str); //过滤style标签
$str=preg_replace(“//si”,””,$str); //过滤style标签

$str=preg_replace(“/(.*?)/si”,””,$str); //过滤title标签
$str=preg_replace(“//si”,””,$str); //过滤title标签

$str=preg_replace(“/(.*?)/si”,””,$str); //过滤object标签
$str=preg_replace(“//si”,””,$str); //过滤object标签

$str=preg_replace(“/(.*?)/si”,””,$str); //过滤noframes标签
$str=preg_replace(“//si”,””,$str); //过滤noframes标签

$str=preg_replace(“/(.*?)/si”,””,$str); //过滤frame标签
$str=preg_replace(“//si”,””,$str); //过滤frame标签

$str=preg_replace(“/(.*?)/si”,””,$str); //过滤script标签
$str=preg_replace(“//si”,””,$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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