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<?php $one = array(2 => '2'); $two = array(2 => '2'); print_r(array_merge($one, $two)); print_r($one + $two); $two += $one; print_r($two);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 2 [1] => 2 ) Array ( [2] => 2 ) Array ( [2] => 2 )

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