title: Computing latitude longitude center point of a Polygon in PHP
body: <p>I have a set of points (stored as lat/lon) for a polygon, I want to compute the lat/lon center point of the polygon in PHP.</p>
  
  <p>Basically to do the same thing as the getCenter() function in Google Maps <a href="http://code.google.com/apis/maps/documentation/javascript/reference.html#LatLngBounds" rel="noreferrer">LatLngBounds</a>.</p>
  
  <p>Any ideas on how I can achieve this?</p>