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<?php $arr1 = array('bundle1' => ['1'], 'bundle2' => ['2']); $arr2 = array('bundle2' => ['3'], 'bundle1' => ['4']); var_dump(array_merge($arr1, $arr2)); var_dump($arr1 + $arr2);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { ["bundle1"]=> array(1) { [0]=> string(1) "4" } ["bundle2"]=> array(1) { [0]=> string(1) "3" } } array(2) { ["bundle1"]=> array(1) { [0]=> string(1) "1" } ["bundle2"]=> array(1) { [0]=> string(1) "2" } }

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