Function for Checking Method Existence in OOP in PHP

Make a class Test with a method method1 and without a method method2. Check what the function method_exists will output for the method method1 and for the method method2.

Let GET parameters be passed in the address bar as the class name and its method. Check if such a class exists. If it exists - check for the existence of the passed method. If the method also exists - create an object of this class, call the specified method and output the result of its work on the screen.