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<?php class A { public $b; }; $a = new A; $rp = new ReflectionProperty($a, "b"); var_dump($rp->isInitialized($a)); $a->b; // Remains silent unset($a->b); var_dump($rp->isInitialized($a)); $a->b; // Cause a "Notice: Undefined property A::$b"
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(false) Warning: Undefined property: A::$b in /in/Ipqhf on line 14

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