php过滤HTML标签、属性等正则表达式汇总

2024-05-04 23:25:50

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这篇文章主要介绍了php过滤HTML标签、属性等正则表达式汇总,本文使用代码实例给出了过滤HTML内容的正则表达式,具体说明请参阅代码中的注释,本文对使用PHP做采集的朋友有比较大的作用,需要的朋友可以参考下

			$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(