I am new to PHP but 10 years in C++
One of the cool/powerful things you can do in C++ is the following:
class DrawDialog {
public:
...
virtual Draw(); // implementation draws a plain dialog box
};
class DrawStyleDialog : public DrawPlainDialog {
public:
...
virtual Draw(); // implementation draws better dialog based on some parameters
};
Somewhere in my code I have a function like:
void ShowGUI( DrawDialog& dd ) {
dd.Draw();
}
ShowGUI can be called with any object that is derived from DrawDialog, obviously. Only
code that calls ShowGUI must be changed when a new implementation of DrawDialog is
used. This feature of C++ to have a base class pointer (or reference) be able to
access derived class functionality is not something I've seen in any PHP
documentation. Does it exist, and if not is there a workaround for this highly
desirable feature?
TIA
Rich
PS Can anyone point me to the most comprehensive OOP documentation for PHP?
