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php完全过滤HTML,JS,CSS等标签

WBOY
WBOYOriginal
2016-06-13 12:25:171288browse

记得以前写过一篇文章
php有效的过滤html标签,js代码,css样式标签:

复制代码 代码如下:


$str = preg_replace( "@<script>@is", "", $str ); <BR>$str = preg_replace( "@<iframe(.*?)@is", "", $str ); <BR>$str = preg_replace( "@<style(.*?)@is", "", $str ); <BR>$str = preg_replace( "@<(.*?)>@is", "", $str ); <BR>?> <BR></script>


,全是正则过滤HTML标签,但是今天自己拿来用都不好用了.原因??就是标签转义了.比如
.页面上显示的是这个.但是源文件却显示的像这样:”——但是我们还是可以处理,先把内容全部反编译过来.再过滤就行了.

复制代码 代码如下:


$str= htmlspecialchars_decode($str);


用htmlspecialchars_decode这个函数的就是把源文件转成这样的标签.然后”:

复制代码 代码如下:


$str= preg_replace("//","",$str);

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