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); $d = array_unique(array_merge(array(array(1,2,3), array(2,3,4)))); var_dump($d);

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33.6 ms | 402 KiB | 5 Q