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<?php $a = ['a'=> 'b', 'c'=> 'd'];$b = ['a'=> 'x', 'c'=> 'y', 'b'=> 'z'];$c = $a + $b;var_dump($c);$d = array_merge($a, $b);var_dump($d);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["a"]=> string(1) "b" ["c"]=> string(1) "d" ["b"]=> string(1) "z" } array(3) { ["a"]=> string(1) "x" ["c"]=> string(1) "y" ["b"]=> string(1) "z" }

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