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<?php $a1 = [1,2]; $a2 = &$a1; $a1[] = 3; var_dump($a1, $a2);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }

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