Databases
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    <p>If you've never worked in someone else's framework you will have no idea what ideas work for you and what don't. If you've only ever worked with dis-organised spaghetti code, then you will have some idea of what makes sense for you. If you've made substantial re-organisation to dis-organised spaghetti code in more than one unrelated project, you should have a good idea of how you think in building a framework. :-)</p> <p>If you don't have a firm idea of how you want to write a framework, but you want to write one, I think you need to start with nothing and build it organically. However, you should have some idea how you want it to look like, even if it's something as silly as where you want the include files to live. In other words, all you need is a starting point. Then it's a matter of re-factoring ugliness as you encounter it. Before long, you will have a database handler, a dispatch mechanism, perhaps a data access layer, just maybe even a templating system!</p> <p>Responding to @MrFox, though, you should be aware of dangerous dependancies. Obviously a data access layer will depend on a database handler; so what you <em>don't</em> want is for your database handler to depend on your data access layer. In fact, you don't want them to have intimate knowledge of each other, either. It should be a reasonably "black-box" interface.</p> <p>Also, a number of frameworks try to build "one" object heirarchy. This means they think an Action is-a Model is-a Database Handler. I personally have problems with this mis-applied abstraction, so this is a heads-up to not be afraid to spurn this idea if it doesn't work for you, either. As @Tyndall said, there's no one, single "right" way to do it.</p>
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    1. POWhat is the best class structure for simple php framework?
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