By reference in combo with php classes

[Darghon]

I sketch of what I'm trying to do

 

I made a database class, consisting of functions to execute queries, make prepared statements, logging, the works

now, the application that I'm writing runs on several other classes that require database access.

so I pass the database object as a parameter, and it all works like a charm

 

now I want to be able to log all uses of the database, so in order to do this, I want to pass the database object as a by reference object to the other classes

 

now I'm not quite sure how to accomplish this, I know that I can pass the variable with &$db (for instance), but, in the class I'm saving the parameter as : $this->db = $db;

 

Correct me if I'm wrong but doesn't that make me lose the reference to the original DB object, and just create a new one in that class?

 

how can I make sure I'm always working with the same DB object, without working with global stuff and so on...

or is my way the correct one?

 

thx in advance

[azuka]

If you're using PHP 5 you need not worry about that. All objects are passed by reference and you don't get a copy unless you specifically clone the object.