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<?php $a1 = ['foo', 'bar']; $a2 = $a1; $a2[] = 'baz'; var_dump($a1, $a2); var_dump($a1 === $a2);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(3) "foo" [1]=> string(3) "bar" } array(3) { [0]=> string(3) "foo" [1]=> string(3) "bar" [2]=> string(3) "baz" } bool(false)

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