Does anyone know a good source for programing language for zip codes/distances/database?

Language can be in Java or PHP. Need to find how to write the programing for doing a simple search (5 miles, 10 miles, etc.) from my registered location, when performing a search for the specific distances identified, so the results will be presented. (The way a search is performed on any dating site, when your... show more Language can be in Java or PHP. Need to find how to write the programing for doing a simple search (5 miles, 10 miles, etc.) from my registered location, when performing a search for the specific distances identified, so the results will be presented. (The way a search is performed on any dating site, when your searching for people near you.) Thanks for your help.
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