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<?php class A { protected $bar = array('baz'); function bar() { array_pop($this->bar); $vars = get_object_vars($this); $this->bar[] = array('buz'); print_r($vars); } function foo() { array_pop($this->bar); $dummy = &$this->bar; $vars = get_object_vars($this); $this->bar[] = array('buz'); print_r($vars); } } (new A())->bar(); (new A())->foo();
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [bar] => Array ( ) ) Array ( [bar] => Array ( [0] => Array ( [0] => buz ) ) )

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