php過濾HTML標(biāo)簽、屬性等正則表達式
本文是百分網(wǎng)小編搜索整理的使用代碼實例給出了過濾HTML內(nèi)容的正則表達式，具體說明請參閱代碼中的注釋，感興趣的朋友一起學(xué)習(xí)吧！!想了解更多相關(guān)信息請持續(xù)關(guān)注我們應(yīng)屆畢業(yè)生考試網(wǎng)!
$str=preg_replace("/\s+/", " ", $str); /pic/p>
$str=preg_replace("/<[ ]+/si","<",$str); /pic/p>
$str=preg_replace("/<\!--.*?-->/si","",$str); /pic/p>
$str=preg_replace("/<(\!.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?html.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?head.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?meta.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?body.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?link.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?form.*?)>/si","",$str); /pic/p>
$str=preg_replace("/cookie/si","COOKIE",$str); /pic/p>
$str=preg_replace("/<(applet.*?)>(.*?)<(\/applet.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?applet.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(style.*?)>(.*?)<(\/style.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?style.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(title.*?)>(.*?)<(\/title.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?title.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(object.*?)>(.*?)<(\/object.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?objec.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(noframes.*?)>(.*?)<(\/noframes.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?noframes.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(i?frame.*?)>(.*?)<(\/i?frame.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?i?frame.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(script.*?)>(.*?)<(\/script.*?)>/si","",$str); /pic/p>
$str=preg_replace("/<(\/?script.*?)>/si","",$str); /pic/p>
$str=preg_replace("/javascript/si","Javascript",$str); /pic/p>
$str=preg_replace("/vbscript/si","Vbscript",$str); /pic/p>
$str=preg_replace("/on([a-z]+)\s*=/si","On\\1=",$str); /pic/p>
$str=preg_replace("/&#/si","&＃",$str); /pic/p>
清除空格，換行
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);
}
過濾HTML屬性
1，過濾所有html標(biāo)簽的正則表達式：
復(fù)制代碼 代碼如下:
</?[^>]+>
/pic/p>
$html = preg_replace("/<([a-zA-Z]+)[^>]*>/","<\\1>",$html);
3，過濾部分html標(biāo)簽的正則表達式的排除式（比如排除<p>，即不過濾<p>）：
復(fù)制代碼 代碼如下:
</?[^pP/>]+>
4，過濾部分html標(biāo)簽的正則表達式的枚舉式（比如需要過濾<a><p><b>等）：
復(fù)制代碼 代碼如下:
</?[aApPbB][^>]*>
5，過濾部分html標(biāo)簽的屬性的正則表達式的排除式（比如排除alt屬性，即不過濾alt屬性）：
復(fù)制代碼 代碼如下:
\s(?!alt)[a-zA-Z]+=[^\s]*
6，過濾部分html標(biāo)簽的屬性的正則表達式的枚舉式（比如alt屬性）：
復(fù)制代碼 代碼如下:
(\s)alt=[^\s]*
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