关于正则,求高手帮助如例: http://bbs.csdn.net/topics/new?forum_id=PHP http://www.bdyy.cc/detail/?20236.html http://www.qq.com/html/?20236.html?id=88888 preg_match('/(http:\/\/)(.*)(\/)/',$rrr,$matches); 如何分别正则出: bbs.csdn.net www.bdyy.cc www.qq.com 分享到: ------解决方案--------------------$s=<< http://bbs.csdn.net/topics/new?forum_id=PHP http://www.bdyy.cc/detail/?20236.html http://www.qq.com/html/?20236.html?id=88888 txt; preg_match_all('/http:\/\/([^\/]+)\//s',$s,$matches); print_r($matches[1]);登录后复制 Array ( [0] => bbs.csdn.net [1] => www.bdyy.cc [2] => www.qq.com )------解决方案-------------------- preg_match('/http:\/\/([^\/]*)/i',$rrr,$matches);