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@ 2017-07-05T18:35:20Z

<?php

var_dump(is_callable('non_existing'));

call('non_existing');

function call(callable $callable)
{
    
}

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

117.98 ms | 402 KiB | 5 Q