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@ 2017-07-09T23:33:00Z

<?php

$true = true;
$false = false;

foo(! empty($false) ? $false : 'foo');
foo(! empty($true) ? $true : 'foo');
foo($false);

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

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

39.77 ms | 402 KiB | 5 Q