Book/tutorial that teaches how to make programs that are easy to maintain and are less coupled?

I'm a PHP programmer and I really want to increase the quality of my code and most importantly I want to be better at programming.

What book开发者_开发百科, tutorial or article would you guys suggest that I read that teaches how to make programs that are less coupled and easy to maintain? Are there any specific tips for PHP especially for the CakePHP framework?

Thanks in advance!

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The Pragmatic Programmer is a good fit here. A little high level, but lots and lots of important, valuable, and clear wisdom. It's language-agnostic.

As for PHP, personally I'm not much of a fan, I think there are other languages that are much better at supporting decoupling. Python, Java, C#, Scala — even JavaScript, with a CommonJS runtime such as Node.js.

That said, you asked about PHP, so my advice would be to find some well-designed Open Source apps and see how they did it. Unfortunately I don't know any specifically, but there must be some.

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As someone in a similar situation, I'm finding PHP Objects, Patterns, and Practice (as recommended here) very helpful.