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<?php $a1 = ['foo' => 'bar', 'baz' => null]; $a2 = ['foo' => 'baf', 'baz' => 'lalala', 'bam' => 2]; var_dump($a1 + $a2); var_dump(array_merge($a1, $a2));
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["foo"]=> string(3) "bar" ["baz"]=> NULL ["bam"]=> int(2) } array(3) { ["foo"]=> string(3) "baf" ["baz"]=> string(6) "lalala" ["bam"]=> int(2) }

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