Google maps API – Center map on client’s current location

Try using the below code to get the user’s current location (GEOLOCATION):

 if (navigator.geolocation) {
     navigator.geolocation.getCurrentPosition(function (position) {
         initialLocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
         map.setCenter(initialLocation);
     });
 }

For showing an example, I’ve removed your php code. Check this JSFiddle

Hope you understand.