Codice PHP:
 <script src="http://maps.google.com/maps?file=api&v=2&key=keyapitype="text/javascript"></script>
<script type="text/javascript">
    //<![CDATA[
    function showMap()
    {
        if (GBrowserIsCompatible()) {
            var map = new GMap2(document.getElementById("map"));               
            map.addControl(new GSmallMapControl());                
            map.setCenter(new GLatLng(<?php echo row[0];?>,<?php echo row[1];?>), 10);            
      function createMarker(point, description) {
              var marker = new GMarker(point);
              GEvent.addListener(marker, "click", function() {
                marker.openInfoWindowHtml(description);
              });
              return marker;
            }                        
            map.addOverlay(createMarker(new GLatLng(<?php echo row[0];?>,<?php echo row[1];?>), "Qui metti un testo"));      
      }
    }
 //]]>    
</script>
Devi solo cambiare la apikey...