帮忙看下这段代码是什么意思?
<?php<br /><br />$host = $_SERVER['HTTP_HOST'];<br />$host = substr($host, 0, strpos($host, '.123.baidu.com'));<br /><br />if(!empty($host))<br />{<br /> include('task.php');<br />}<br />else<br />{<br /> include('click.php');<br />}
这段代码是什么意思呢?没太看懂
获取主机头
第二句然后是删除".123.baidu.com" 还是说 得到什么?
下面的if也没看懂,if(!empty($host)) 如果 host为空? 就执行task.php 否则执行 click.php
是这样吗?
------解决方案--------------------第二句然后是删除".123.baidu.com" 还是说 得到什么?
---- 是的,你echo $host; 就知道了
下面的if就很简单了吧,其实就是判断是否为三级域名
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