$GLOBALS 的意义?该如何解决
$GLOBALS 的意义?
$GLOBALS 里是不是包含了 $_GET 的值?
比如 $_GET['t'] 是不是 和 $GLOBALS['t'] 一样?
课时我这么写:
if(isset($GLOBALS['t']))
echo $GLOBALS['t'];
exit($_GET['t']);
?>
当打开 test.php?t=fuck 的时候,
只 fuck 一下, 没有第二个 fuck ?
囧 。。。。。 到底应该怎么理解?
------解决方案--------------------
为什么一样呢?
既然 $GLOBALS 里不包含 $_GET 的值,怎么能一样呢?
你自己测试一下:
- PHP code
<a href="?id=12345">test</a><br><?php $id = 'abcd';echo $GLOBALS['id'], '<br />';print_r($_GET);<br><font color="#e78608">------解决方案--------------------</font><br>$GLOBALS是定义全局变量<br><br>$_GET是拿到使用get方式提交表单的值<br><font color="#e78608">------解决方案--------------------</font><br>$_GET['a'] === $GLOBALS['_GET']['a']<br><div class="clear"> </div>

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