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FindMyNearest is a PHP class for working with UK postcodes, and in particular for calculating the distance between two postcodes. FindMyNearest supports several alternative data sources through drivers. Currently data can be got from a delimited text file, a mysql database or through several web APIs
FindMyNearest is generally not too fussy about the formatting of postcodes. It accepts any case, spaces between parts or not and partial postcodes. It even corrects the letter O at the beginning of an inward part, changing it to the nubmer 0.
If the backend datasource contains location data for partial postcodes these are used if an exact match can’t be found.