3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('', 0, false, 1, 'false', null, '0', true, 1, '1'); foreach($a as $i => $val) { echo "$val : \n"; $b = (isset($a[$i]) && (bool) $a[$i]); var_dump($b); }

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58.51 ms | 402 KiB | 5 Q