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@ 2015-12-15T18:52:48Z

<?php
declare(strict_types=1);

function f(int $foo) {
    var_dump($foo);
}

f(1);
f(1.5);
f("10");
f("10gaklj");

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive preview

68.57 ms | 402 KiB | 5 Q