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

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