(PECL classkit >= 0.1) Dynamically removes the given method
(PECL classkit >= 0.1) Dynamically changes the code of the given method
(PECL classkit >= 0.2) Copies a method from class to another
(PECL classkit >= 0.1) Dynamically adds a new method to a given class
(PECL classkit >= 0.1) Dynamically changes the name of the given method
(PECL classkit >= 0.3) Import new class method definitions from a file