Here is a simple Google base feed parser php class I wrote recently. It lets you pick and choose which fields you would like to grab from the feed
https://github.com/matthewaprice/Google-Base-Feed-Parser
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I have written a simple php class that handles regular expressions. Once instantiated it can remove characters, numbers, words, letter, or custom expressions from a string. It does not require you to know any of the syntax for implementation. It simply returns the value of the string with the pattern removed.
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