Re: OOP and object references, not copies - how to do?

PHP can pass references to objects around exactly the same way you pass references to normal variables. -Rasmus On Thu, 26 Dec 2002, Erik Franzén wrote: > Say the you are going to create a simple forum and you want to have a number > of classes: > > Class Sql - handles the DB interface > Class User - handles users > Class Messages - handles messages > > When you are writing the code, you first creates a new sql object in order > to read or write data from or to the database. > > Secondly you create a user object in order to handle users, for an example, > to authenticate the user which is going to write a new message in your > forum. > > The user object have a method which reads user information from the > database. > Since you alread have created a sql object, this method should use the sql > object in order to fecth data from the database. > > I nice way to do this, would be to send the sql object as an reference to > the user object constructor and store the object reference to the sql object > in the user object. > > This is not working very well in PHP yet because PHP cannot treat objects as > references. When you send the sql object to the user object constructor > method, it will be a copy, not a reference! > > How do I get around this? There must be a way to handle this and create nice > OOO PHP-code? I don't like using global variables as object handles. > > Best regards > Erik > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php >