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@ 2014-02-06T23:17:35Z

<?php
error_reporting(-1);
$x = [];
if (!isset($x['y']['z']['a']))
{
		$x['y']['z']['a'] = 'foo';
}

var_dump($x);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
error_reporting: documentation ( source)

preferences:dark modelive preview

28.51 ms | 402 KiB | 5 Q