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php-这段PHP代码是什么意思呀？
- WBOYOriginal
- 2016-06-02 11:27:46820browse
php
$globals = array($_REQUEST, $_SESSION, $_SERVER, $_FILES);
<code>foreach($globals as $global){ foreach(array_keys($global) as $key){ unset(${$key}); }}</code>
<code></code>
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