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php过滤危险html代码_PHP

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Release: 2016-06-01 12:24:44
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以下是程序代码:
复制代码 代码如下:
function uhtml($str)
{
$farr = array(
"/\s+/", //过滤多余空白
//过滤 <script>等可能引入恶意内容或恶意改变显示布局的代码,如果不需要插入flash等,还可以加入<object>的过滤 <BR>"/<(\/?)(script|i?frame|style|html|body|title|link|meta|\?|\%)([^>]*?)>/isU", <BR>"/(<[^>]*)on[a-zA-Z]+\s*=([^>]*>)/isU",//过滤javascript的on事件 <BR>); <BR>$tarr = array( <BR>" ", <BR>"<\1\2\3>",//如果要直接清除不安全的标签,这里可以留空 <BR>"\1\2", <BR>); <BR>$str = preg_replace( $farr,$tarr,$str); <BR>return $str; <BR>} <BR></script>

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