How does phpcall_user_func_array call the methods of the object class?

How does phpcall_user_func_array call the methods of the object class?

Function callback ($ object) {if ($ object! = Null & method_exists ($ object, 'returndata') {// you can run call_user_func_array (array ($ object, 'returndata') here '), array (ERROR_SOFT_NO_EXIST ));}}

When I call callback ($ this) in a class, method_exists returns true, but the subsequent call_user_func_array always reports an error: Think \ Controller: returnData method does not exist!

Think \ Controller: returnData is the base class of this class. how can we call the returnData method of this class instead of the method of the base class?

Reply to discussion (solution)

Resolved. the called method must be a public method.