3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(array(1),2,3); $b = array(1,2,3); $f = array(2,3,4); $c = array_merge($a, $b, $f); $d = array_unique($c); var_dump($d);

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34.15 ms | 402 KiB | 5 Q