Re: [PHP-DEV] More OOP From: Alexander Wirtz (wirtz <email protected>)
Date: 01/18/01

Hi Tom,

>I looked at your link "http://www.mm4.de/php4win/tips.php3?id=1" and found
>that "parent::classname()" worked. But how? Usualy PHP uses a "->" like
>"$this->classname()". I've never before seen the two "::" - Can someone
>explain?

This syntax is borrowed from C++ (or Java) and is a way to access methods
of classes which have no instance. This is also called a static method.
So if you have

class myclass
{
   function myfunction()
   {
      ...
   }
}

you can access this function via "myclass::myfunction()", even if there is
no object instantiated. "parent" is a reserved word to access functions of
the superclass.

(I hope I got everything right ;-)

Regards
   Alex 

-- 
| Alexander Wirtz           | eMail: wirtz <email protected>                |
| web <email protected> GmbH            | WWW:   http://www.web-active.com           |

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