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<?php $a = [1, 2, 3]; $b = [0 => [4], 1 => [5]]; $t = $b[1] + $a; var_dump($t); var_dump(array_merge($a, $b[1]));
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> int(5) [1]=> int(2) [2]=> int(3) } array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(5) }

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