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run code in 300+ PHP versions simultaneously
<?php $a1 = array(1, 2, 3); $a2 = array(2, 3, 4); array_merge($a1, $a2); print_r($a1); print_r($a2); $a1 = array_merge($a1, $a2); print_r($a1);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 1 [1] => 2 [2] => 3 ) Array ( [0] => 2 [1] => 3 [2] => 4 ) Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 2 [4] => 3 [5] => 4 )

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