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<?php $values = [ 'a' => 1, 'b' => 2, 'c' => 3, ]; $mapping = [ 'x' => 'a', 'y' => 'b', 'z' => 'c', ]; $combined = array_map(function ($key) use ($values) { return $values[$key]; }, $mapping); var_dump($combined);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["x"]=> int(1) ["y"]=> int(2) ["z"]=> int(3) }

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