3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(0 => 0, 1 => 1, 2 => 2); $b = array(0 => 2, 1 => 3, 2 => 4); var_dump(array_unique(array_merge($a, $b)));

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38.61 ms | 402 KiB | 5 Q