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<?php Class A {} $a = new A; $b = $a; // Passed by identifier $a = null; var_dump($b); $a2 = new A; $b2 = &$a; // Passed by reference $a2 = null; var_dump($b2);
Output for git.master, git.master_jit, rfc.property-hooks
object(A)#1 (0) { } NULL

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