PHP problem sets for beginners

There are plenty of tutorials and step by step guides out there on the internet, but they give mostly examples which you can run in the computer.

Is there a good separate set of problems that beginners can try to solve themselves. If existing solutions are available, even better.

Update To put it more clearly, is there any resource online开发者_StackOverflow中文版 with a collection of Practice Questions which beginners can refer to? A set of problems in using operators, using arrays, etc?

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Take a look at these sets http://codingkata.org/ . They're language independent and cover some important beginner fields: arrays, string operations, recursion, regular expressions, etc.

I wouldn't recommend Project Euler as it has more to do with math and advanced programming and it won't help you develop too many useful skills.

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I hope this doesn't come across as spam but I'm actually working on a project right now that is going to allow people to upload their own projects so that people like yourself can browse through real life example of peoples work. - booyahachieved.com

I do need people to contribute code first though! and please remember it's still in development!