Help Understanding Object Orientend Programming OOP

I've been reading up about OOP on several websites & looking though (SO and I find it hard to find any that shows a decent example of a full OOP PHP application. They give examples using cars but It doesn't resonate well with me in regards to putting it to actual use one day.

Can someone show me a good full example off OOP that could be used in a real website scenario. I know I may be asking for a lot but It will really help.

开发者_运维百科

Or is there a diagram somewhere that shows a real life relationship between methods, classes, Objects, constructors etc.

I know it's not simple to explain but It would appreciate an attempt.

Thanks in advance

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What if you change "car" to something a little more familiar on the web?

$post = new BlogPost();
$post->setTitle($_POST['title']);
$post->setBody($_POST['body']);
$post->setTags($_POST['tags']);
$post->save();

Same idea. You have a BlogPost class which encapsulates the representation and manipulation of blog posts. It hides things like turning a comma-separated list of tags from the user into separate rows in a tags table when saving the post, and just how the post is saved. You could switch from saving them as text files to saving them in a database without changing all the code like above where you read or write posts.

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You could try using Symfony or Yii. You'll be doing OOP in them, plus they both have sample applications you can get started with quickly.

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Bruce Eckel's freely available book "Thinking in Java" contains a great introduction to the object oriented world (chapter 1). Though it contains some Java references, you'll later see that the conceptual fundamentals of OOP are the same in C++, Java, PHP, or any other modern programming language.

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I think these books can be a good start point

PHP Objects, Patterns, and Practice, Second Edition

http://www.apress.com/book/downloadfile/3872