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@ 2015-11-27T19:20:44Z

<?php

$values = array(0, '', NULL, FALSE);
$result = array();
foreach ($values as $x) {
    foreach ($values as $y) {
        $result[var_export($x, TRUE)][var_export($y, TRUE)] = in_array($x, array($y));
    }
}
var_export($result);

Output
Performance
VLD
References
Branches

var_export: documentation ( source)
in_array: documentation ( source)

preferences:dark modelive preview

32.12 ms | 402 KiB | 5 Q