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<?php interface FooInterface { public function get(); } class Foo implements FooInterface { protected $thing = 5; public function &get() { return $this->thing; } } $foo = new Foo(); $thing1 = $foo->get(); $thing1 = 6; var_dump($foo->get()); $thing2 = &$foo->get(); $thing2 = 7; var_dump($foo->get());
Output for git.master, git.master_jit, rfc.property-hooks
int(5) int(7)

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