ArrayAccess::offsetExists Whether an offset exists &reftitle.description; public boolArrayAccess::offsetExists mixedoffset Whether or not an offset exists. This method is executed when using isset or empty on objects implementing ArrayAccess. When using empty ArrayAccess::offsetGet will be called and checked if empty only if ArrayAccess::offsetExists returns &true;. &reftitle.parameters; offset An offset to check for. &reftitle.returnvalues; &return.success; The return value will be casted to bool if non-boolean was returned. &reftitle.examples; ]]> &example.outputs.similar;