Smarty

[Enquest]

As I'm always learning I was wondering about the following code practise.

When I make a site with smarty I have a central setup.php file. Each page I make is refering to this page.
I also luve to use classes. As we al know you need to initiate a class.

My question is: is it wise to but this in al the classes via required_once('class1.php') in the setup.php. And $class = new class($db);... in the setup.php
Doesn't it make the site slower the more classes you have? For example 10, 20 classes...
Doesn't it make this smarty slower?

What would be the correct code practise for this.
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Learning my self by trying to help others

[inerte]

Yes, it make PHP slower to require a lot of files.

Usually what I do is require only widely used classes on the central file, and smaller parts where they are needed.