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@ 2015-09-28T05:03:41Z

<?php

declare(strict_types = 1);

function type(int &$a)
{
    $a = 'string !!';
}

$a = 42;
type($a);

var_dump($a);

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

39.87 ms | 402 KiB | 5 Q