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@ 2013-07-25T22:57:37Z

<?php

$var = 0;


$empty = empty($var);

var_dump($empty);

$isZero = $var === 0;

var_dump($isZero);

$isZeroOrStringZero = $var == '0';

var_dump($isZeroOrStringZero);

Output
Performance
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var_dump: documentation ( source)

preferences:dark modelive preview

38.85 ms | 402 KiB | 5 Q