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 DrawPlainDialog {
public:
...
virtual Draw(); // implementation draws a vanilla dialog box
};
class DrawStyleDialog : public DrawPlainDialog {
public:
...
virtual Draw(); // implementation draws better dialog
};
Somewhere in my code I have a function like:
void ShowGUI( DrawPlainDialog& dd ) {
dd.Draw();
}
ShowGUI can be called with any object that is derived from DrawPlainDialog,
obviously. Only code that calls ShowGUI must be changed when a new
implementation of DrawPlainDialog 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?
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