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<?php $a = [ 'first' => 4, 'second' => 5, 'third' => 6 ]; $b = [ 'first' => 6, 'second' => 7, 'forth' ]; var_dump($a + $b);
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { ["first"]=> int(4) ["second"]=> int(5) ["third"]=> int(6) [0]=> string(5) "forth" }

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