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<?php $b = [ ['TEST' => '1'], ['TEST' => '2'], ['TEST' => '3'], ]; $a = array_column($b, null, 'TEST'); var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [1]=> array(1) { ["TEST"]=> string(1) "1" } [2]=> array(1) { ["TEST"]=> string(1) "2" } [3]=> array(1) { ["TEST"]=> string(1) "3" } }

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