走过山头,坐在夕阳勾勒的黄昏里,吹一缕向晚的凉风,听树叶婆娑着沙沙的声响。望着天边绯红的落日渐渐西沉,透过头顶的树隙,仍有一抹余温爬上微热的脸庞。
我们常常会用到PHP过滤一些标签的功能,比如过滤链接标签、过滤script标签等等,下面就介绍一下PHP过滤常用标签的正则表达式代码:
$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
到此这篇关于PHP中过滤常用标签的正则表达式就介绍到这了。在醒着的时间里,追求你认为最有意义的。更多相关PHP中过滤常用标签的正则表达式内容请查看相关栏目,小编编辑不易,再次感谢大家的支持!