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@ 2013-10-30T06:07:35Z

<?php
$a = 'a'.file_exists(__FILE__);
$a1 = 'wiki';
$a2 = 'kiwi';
echo ${$a};
?>

Output
Performance
VLD
References
Branches

file_exists: documentation ( source)

preferences:dark modelive preview

52.74 ms | 402 KiB | 5 Q