Google Map with Address by using PHP

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
html, body, #map-canvas { height: 100%; margin: 0; }
</style>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var geocoder;
var map;
var address ="<?php echo "Sector 60 Noida"; ?>";

function initialize()
{
      geocoder = new google.maps.Geocoder();
      var latlng = new google.maps.LatLng(-34.397, 150.644);
      var myOptions = {  zoom: 15,  center: latlng,  mapTypeControl: true,
                         mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU},
                         navigationControl: true,
                         mapTypeId: google.maps.MapTypeId.ROADMAP };
      map = new google.maps.Map(document.getElementById("map-canvas"), myOptions);
      if (geocoder)
      {
            geocoder.geocode( { 'address': address},
            function(results, status)
            {
                  if (status == google.maps.GeocoderStatus.OK)
                  {
                        if (status != google.maps.GeocoderStatus.ZERO_RESULTS)
                        {
                              map.setCenter(results[0].geometry.location);
                              var infowindow = new google.maps.InfoWindow(
                              { content: '<b>'+address+'</b>',
                              size: new google.maps.Size(150,50)});
                              var marker = new google.maps.Marker({
                              position: results[0].geometry.location,
                              map: map,
                              title:address });
                              google.maps.event.addListener(marker, 'click',
                              function()
                              {
                                   infowindow.open(map,marker);
                              });
                         }
                         else
                         {
                              alert("No results found");
                         }
                  }
                  else
                  {

                        alert("Geocode was not successful for the following reason: " + status);
                  }
            });
      }
}
</script>
</head>
<body onload="initialize();">
<div id="map-canvas"></div>
</body>
</html>