php获取url字符串截取路径的文件名和扩展名

<?php //获取连接里边的id $url = \'http://www.rong123.com/cjbkscbsd/x_dfsdfs/24454_1_1.html\'; function getIdByUrl($url) { $id = \'\'; $filename = basename($url,".html"); $id = str_replace(\'-\', \'_\', $filename); if(strstr($id, \'_\')) { $conids = explode(\'_\', $id); $id = $conids[0]; } return $id; } echo getIdByUrl($url).\'<hr/>\'; //获取完整文件名 echo basename($url).\'<hr/>\'; //获取没有后缀的文件名 echo basename($url,".html"); ?>