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@ 2012-09-11T12:46:51Z

<?php

$x = function() { 
    echo 512, "\n";
};

var_dump(is_callable($x));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_callable: documentation ( source)

preferences:dark modelive preview

35.27 ms | 402 KiB | 5 Q