1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 <?php $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 $str=preg_replace("/<(\/?br.*?)>/si","",$str); //过滤br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 […]