Geolocator is a PHP class which provides an easy-to-use interface to the IP address location XML API described at ipinfodb.com. This API allows you to find the city, state/region, country, and approximate latitude/longitude associated with an IP address or domain. The class aims to be easy-to-use, versatile, and well-documented. The class requires PHP 5.30 or greater, compiled with cURL support.
LocDemo demonstrates the functionality of libwlocate. After startup, it evaluates the current geographic position of the user and displays it within a map. This solution offers geographic localization that works without the use of GPS and without submitting tracking or position data to commercial providers of such services.
phpMyGPX is a Web application based on PHP, MySQL, and OpenLayers to manage photos and GPX files with a browser, on your local machine or online, to share your tracks and images. GPX is an XML file format containing track points and routes collected by GPS receivers, and is very popular with navigation, geocaching, and OpenStreetMap.