ReflectionReference::getId Get unique ID of a reference &reftitle.description; public stringReflectionReference::getId Returns an ID which is unique for the reference for the lifetime of that reference. This ID can be used to compare references for equality, or to maintain a map of known references. &reftitle.parameters; &no.function.parameters; &reftitle.returnvalues; Returns a &string; of unspecified format. &reftitle.examples; getId() === $rr2->getId()); var_dump($rr1->getId() === $rr3->getId()); ?> ]]> &example.outputs;