Is it posible to redefine magic constants?
<p>I need to know if it is possible to redefine <a href="http://php.net/manual/en/language.constants.predefined.php" rel="nofollow">magic constants</a>.</p>

<p>I saw the runkit extension, which lets you redefine normal constants, but does it also allow you to redefine magic constants, like <code>__FILE__</code>?</p>
