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<?php $array = [ 1 => [ 1 => [ 'anna', 'alice' ], 2 => [ 'bob', 'bartold' ] ], 2 => [ 1 => [ 'carol' ], 2 => [ 'david' ] ] ]; $result = []; foreach ($array as $key => $arr) { foreach ($arr as $k => $v) { $result[$k] = $v; } } var_dump($result);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [1]=> array(1) { [0]=> string(5) "carol" } [2]=> array(1) { [0]=> string(5) "david" } }

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