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@ 2015-04-15T12:53:52Z

<?php
$array = array('foo' => array('bar'));
function foo() {
    return array('bar');
}
var_dump(key(foo()));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

39.27 ms | 402 KiB | 5 Q