3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a' => 1, 'b' => 2); $b = array('b' => 2, 'a' => 1); $c = array($a, $b); echo (int) in_array($a, $c);

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37.64 ms | 402 KiB | 5 Q