php使用正则去掉html的方法：首先创建一个PHP示例文件；然后通过正则表达式“preg_replace"/<[a-za-z]+)[^>]*>/","<\\\\1>",$html);”过滤所有html标签的属性即可。
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php过滤HTML标签、属性等正则表达式汇总
$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：
</?[^>]+> //过滤所有html标签的属性的正则表达式： $html = preg_replace"/<[a-zA-Z]+)[^>]*>/","<\\\\1>",$html);