PHP return语句另类用法不止是在函数中，return语句
PHP return语句另类用法不止是在函数中，return语句
分享下PHP return语句的另一个作用，在bbPress的代码中看到的一个奇葩使用方法。
一直以为，return只能出现在函数中，直到看了bbPress的代码:
<?php
require_once('./bb-load.php');
bb_repermalink(); // The magic happens here.
if ( $self ) {
if ( strpos($self, '.php') !== false ) {
require($self);
} else {
require( BB_PATH . 'profile-base.php' );
} // www.jb51.net
return;
}难道 return 还能出现在函数之外？这在C语言是无法想象的。
查了一下 PHP 手册：如果在一个函数中调用 return 语句，将立即结束此函数的执行并将它的参数作为函数的值返回。如果在全局范围中调用，则当前脚本文件中止运行。
return 是返回啊 。
echo是输出。也可以print
return不是输出，
可以,按逻辑关系,当执行到一个return时,返回,后面的语句不再执行,若很一个没有执行到的话,后面的就有可能被执行了
不过这段程序里的第二个return一点用也没有,永远不会被执行
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