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<?php $arr = [ [1, 2, 3, 4], ['one', 'two', 'three', 'four'] ]; $out = array_map(function (...$r) { return $r; }, ...$arr); print_r($out);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => 1 [1] => one ) [1] => Array ( [0] => 2 [1] => two ) [2] => Array ( [0] => 3 [1] => three ) [3] => Array ( [0] => 4 [1] => four ) )

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