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@ 2021-02-03T09:26:20Z

<?php

$NaN = sqrt(-1);

var_dump($NaN === $NaN);
var_dump(array($NaN) === array($NaN));

$a = array($NaN);
$b = $a;

var_dump($a === $b);

reset($b);

var_dump($a === $b);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
reset: documentation ( source)
sqrt: documentation ( source)

preferences:dark modelive preview

63.27 ms | 402 KiB | 5 Q