title: PHP Geolocation API
body: <p>I need to show specific content in my page depending of user location.
  My application will be similar to <a href="http://www.yelp.com/" rel="nofollow">http://www.yelp.com/</a>. I want at the homepage to show the business from the city where the user is located. (by checking it´s ip address).</p>
  
  <p>Does anybody know any good PHP geolication api?</p>