|
PHP 5 introduces abstract classes and methods. It is not allowed to create an instance of a class that has been defined as abstract. Any class that contains at least one abstract method must also be abstract. Methods defined as abstract simply declare the method's signature they cannot define the implementation.
The class that implements the abstract method must define with the same visibillity or weaker. If the abstract method is defined as protected, the function implementation must be defined as either protected or public.
Old code that has no user-defined classes or functions named 'abstract' should run without modifications.
Hosting by: hurra.com
Generated: 2007-01-26 17:56:52