[PHP] How to force a variable to be a custom object?

[Alex Gemmell]

Hi all,

Just a quickie today: I was wondering if I can declare a Class variable 
as a certain type of object.  I'm using PHP 4 by the way.

For example, if my class looks like this:

class myClass {

        var $object;

        function someFunction() {
                // code, code, code ....
        }
}

Is there anyway I can limit the variable "$object" to be of a particular 
Class of object that I have made.  Something like:

class myClass {

        var $object *type=myOtherClass*;

        function someFunction() {
                // code, code, code ....
        }
}

Yes, yes, I know "*type=myOtherClass*" isn't PHP code, but do you see 
what I'm getting at?  How would I achieve this?  Is it even possible?

And would I then also have to include/require the path to the 
"myOtherClass" definition script in the myClass definition?
e.g.

class myClass {
        *require_once('path/to/myOtherClass.php');*

        var $object *type=myOtherClass*;

        function someFunction() {
                // code, code, code ....
        }
}

Any ideas folks?

All the best,

Alex

--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php