Classes/Objects get_class_methods Returns an array of class methods' names array get_class_methods string class_name This function returns an array of method names defined for the class specified by class_name. get_class_vars Returns an array of default properties of the class array get_class_vars string class_name This function will return an array of default properties of the class. get_object_vars Returns an array of object properties array get_class_vars object obj This function returns an array of object properties for the specified object obj. method_exists Checks if the class method exists bool method_exists object object string method_name This function returns true if the method given by method_name has been defined for the given object, false otherwise.