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Programming PHP, 3rd Edition by Peter MacIntyre, Kevin Tatroe, Rasmus Lerdorf

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Additional Debugging Techniques

There are more advanced techniques that can be used for debugging, but they are beyond the scope of this overview. Two such techniques are profiling and unit testing. If you have a large web system that requires a lot of server resources, you should certainly look into the benefits of these two techniques, as they can make your code base more fault-tolerant and efficient.

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