(PHP 4 >= 4.3.0)
overload — Enable property and method call overloading for a class
$class_name
   )
   The overload() function will enable property and method
   call overloading for a class identified by class_name.
  
class_nameThe overloaded class name, as a string
No value is returned.
See an example in the introductory section of this part.