I want to learn php5 !!

PHP code :--------------------------------------------------------------------------------
Function FactoryMethod ($ class_type)
{
Switch ($ class_type)
{
Case "foo ":
$ Obj = new MyFoo ();
Break;
Case "bar ":
$ Obj = new MyBar ();
Break;
}
Return $ obj;
}
$ Object = FactoryMethod ("foo ");
$ Object-> method ()
$ Copy_of_object = $ object->__ clone ();
Class MyClass
{
Function _ destruct ()
{
... // Run destructor code
}
}
Delete $ object;
Class Shape {
Function _ construct ()
{
// Shape initialization code
...
}
...
};
Class Square extends Shape
{
Function _ construct ()
{
Parent: :__ construct ();
// Square-specific initialization code
...
}
...
};
Class foo
{
Private $ priv_var;
Function some_method (...)
{
$ This-> priv_var = ...; // Written on zend: $ priv_var = ...; I have never tried.
}
};
Class Logger
{
Static $ m_Instance = NULL;
Function Instance ()
{
If (Logger ::$ m_Instance = NULL)
{
Logger: $ m_Instance = new Logger ();
}
Return Logger: $ m_Instance;
}
Function Log ()
{
...
}
};
$ Logger = Logger: Instance ();
$ Logger-> Log (...);
Try
{
... Code
If (failure)
{
Throw new MyException ("Failure ");
}
... Code
}
Catch ($ exception)
{
... Handle exception
Throw $ exception; // Re-throw exception.
}