PHP过滤常用的标签

/si","",$str); //注释$str=preg_replace("//si","",$str); //过滤DOCTYPE$str=preg_replace("//si","",$str); //过滤html标签$str=preg_replace("//si","",$str); //过滤br标签$str=preg_replace("//si","",$str); //过滤head标签$str=preg_replace("//si","",$str); //过滤meta标签$str=preg_replace("//si","",$str); //过滤body标签$str=preg_replace("//si","",$str); //过滤link标签$str=preg_replace("//si","",$str); //过滤form标签$str=preg_replace("/cookie/si","COOKIE",$str); //过滤COOKIE标签$str=preg_replace("/(.*?)/si","",$str); //过滤applet标签$str=preg_replace("//si","",$str); //过滤applet标签$str=preg_replace("/(.*?)/si","",$str); //过滤style标签$str=preg_replace("//si","",$str); //过滤style标签$str=preg_replace("/(.*?)/si","",$str); //过滤title标签$str=preg_replace("//si","",$str); //过滤title标签$str=preg_replace("/(.*?)/si","",$str); //过滤object标签$str=preg_replace("//si","",$str); //过滤object标签$str=preg_replace("/(.*?)/si","",$str); //过滤noframes标签$str=preg_replace("//si","",$str); //过滤noframes标签$str=preg_replace("/(.*?)/si","",$str); //过滤frame标签$str=preg_replace("//si","",$str); //过滤frame标签$str=preg_replace("/(.*?)/si","",$str); //过滤script标签$str=preg_replace("//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，?>