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<?php $a = [-1 => 'test', 'code', 'name' => 'value']; $b = array(1 => 'data', 'name' => 'empty'); var_dump($a + $b);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [-1]=> string(4) "test" [0]=> string(4) "code" ["name"]=> string(5) "value" [1]=> string(4) "data" }

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