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@ 2013-07-03T22:26:15Z

<?php

$x = [];
$x[TRUE] = 1;
var_dump(gettype(key($x)));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
key: documentation ( source)

preferences:dark modelive preview

40.28 ms | 402 KiB | 5 Q