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zip code/location implementation


webcornea

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You would need a database of zip codes and their approximate positions (lattitude & longitude). You can then calculate the distance between two positions. Every implementation I have seen "assumes" the position of the business is 0 miles if the start position is in the same zip code.

 

Here is one vendor that supplies such a database for $150: http://www.melissadata.com/zd.html

 

Here is the demo page: http://www.melissadata.com/Lookups/zipdistance.asp

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that is quite pricey, are there any others?

 

i also wanted to clarify that i only want to implement search based on location like myspace.com or ebay.com where people can search for products and users within a certain area based on zip code.

 

please help

 

thank you

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