preg replace:php过滤超链接并判断链接中文字是否为网址preg_replace_callback函数用法
示例代码如下:
$str = 'www.cxybl.com cxybl 过滤超链接';
$str = filter_url($str);
处理代码如下:
function filter_url($str){
return preg_replace_callback("/]+>(.+?)/i","filter_url_callback",$str);
}
function filter_url_callback($matchs){
$str = $matchs[1];
if(!$str) return '';
$arr = array('www.','http://','.com','.cn','.org','.net','.cc');
foreach($arr AS $k=>$v){
if(stripos($str,$v) !==false) return '';
}
return $str;
}
如果超链接的文字为 www.cxybl.com 的网址,也会被过滤掉.但是如果是纯文字的话就保留.

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