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@ 2015-11-04T13:55:46Z

<?php

declare(strict_types=1);

function bla(int $i):int {
    return $i;
}

var_dump(bla(5));
var_dump(bla('a'));

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

42.16 ms | 402 KiB | 5 Q