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<?php class Bar {} class Foo { private $bar; public function __construct(Bar $bar) { $this->bar = $bar; } public function print() { echo spl_object_hash($this->bar); echo "\n"; } } $b = new Bar(); $f1 = new Foo($b); $f2 = clone $f1; $f1->print(); $f2->print();
Output for git.master, git.master_jit, rfc.property-hooks
00000000000000010000000000000000 00000000000000010000000000000000

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