PHP regular problem, how to remove it? Content after the beginning

Question

For examplehttp://www.baidu.com/xxxxxx.mp4?tag=MsjsIjdjajs

I need to remove it?tag=MsjsIjdjajs

Answer 1

This requirement is very simple. You don’t need to use regular expressions. String functions can handle it:

<?php

$str = 'http://www.baidu***/xxxxxx.mp4?tag=MsjsIjdjajs';

echo strstr($str, '?', true);

// 结果: http://www.baidu***/xxxxxx.mp4