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<?php $ar1 = array('q' => 1, 'w' => 2); $ar2 = array('q' => 3, 'e' => 4); $ar2 += $ar1; var_dump($ar2);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["q"]=> int(3) ["e"]=> int(4) ["w"]=> int(2) }

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