access class methods within another class

[bknowles]

Hey all,

I was wondering if it is possible to access methods of a class from within another class. I have an error reporting class and a database access class and i want the database class to be able to signal the error reporting object that an error has occoured. Here's some simple code to illustrate what i'm trying to do:

class database {
   function dbconnect($host, $user, $pass, $db) { 
        mysql_connect($host, $user, $pass) or $errorObject->error('101', 'could not connect to database!');
    }
}

The error class and the method error() that i called just contains some code to deal with the error that was passed to it. The code for my page creates a new error object (called $errorObject) and a new database object.

So, is there any way this can be done?

Any help would be greatly appreciated! Thank you!

[sgoku01]

Yes, there is a way 🙂

Here's how you do it:

class database {
   function dbconnect($host, $user, $pass, $db) { 
   $errorObject = new errorObject(); 
        mysql_connect($host, $user, $pass) or $errorObject->error('101', 'could not connect to database!');
    }
}

I think that has to work.

[bknowles]

Thank you very much for your reply, it works great 🙂

But what kind of preformance hit am i going to take by doing this? If i have to create a new object for each sepperate class i have, isn't that loading lots of stuff into memory gonna slow stuff down?

Not that it matters much, my classes are all pretty simple and small, but just out of curiosity, if i had bigger classes, would that slow me down much?

Thanks again for the help!

[sgoku01]

I don't know, but I think I wouldn't matter, because a class contains functions.
And a function will not be executed when you don't call it.