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<?php $x = ["a", "b", "c", "d", "e"]; var_export( array_reduce( $x, function($result, $v) { $result[] = $v; return $result; }, $x ) );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd', 4 => 'e', 5 => 'a', 6 => 'b', 7 => 'c', 8 => 'd', 9 => 'e', )

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