php的str_replace() 函數使用正則

字串如下：
“http:\/\/www.sina.com\/music1\/23412455.mp3?time=2234523&type=mp3”
“http:\/\/www.sina.com\/music2\/4325243.mp3?time=2234523&type=mp3”
“http:\/\/www.sina.com\/music3\/346553.mp3?time=2234523&type=mp3”
需要對http開始，？結束之間的字串換成“abc”，在php的str_replace函數裡，該如何寫？謝謝

回複討論(解決方案)

str_replace 用不了正則，用preg_replace 吧

正則能做到.

$str="http:\/\/www.sina.com\/music1\/23412455.mp3?time=2234523&type=mp3";
str_replace(substr($str,4,strpos($str,'?')),'abc',$str);

$urls = array("http:\/\/www.sina.com\/music1\/23412455.mp3?time=2234523&type=mp3","http:\/\/www.sina.com\/music2\/4325243.mp3?time=2234523&type=mp3","http:\/\/www.sina.com\/music3\/346553.mp3?time=2234523&type=mp3");foreach($urls as $url){echo preg_replace('@http(.*?)\?@i','abc',$url).'
';}

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