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POdisplay google map with php and mysql using the longitude and latitude stored in the database is not workingg
 

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  1. POdisplay google map with php and mysql using the longitude and latitude stored in the database is not workingg
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    <p>I have a map page that include a Google map to display users static locations using the php and mysql because the <strong>longitude and lattitude</strong> are stored in the database in <strong>village table</strong> but the <strong>village id</strong> is in the a foreign key in the user table so I used the <strong>INNER join</strong> but the problem is that the browser do not show anything.</p> <h1>map.php</h1> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt; &lt;head&gt; &lt;meta name="keywords" content="" /&gt; &lt;meta name="description" content="" /&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" /&gt; &lt;title&gt;&lt;?php print "$firstname $lastname"; ?&gt;&lt;/title&gt; &lt;link href='http://fonts.googleapis.com/css?family=Oswald:400,300' rel='stylesheet' type='text/css' /&gt; &lt;link href='http://fonts.googleapis.com/css?family=Abel|Satisfy' rel='stylesheet' type='text/css' /&gt; &lt;link href="default.css" rel="stylesheet" type="text/css" media="all" /&gt; &lt;!--[if IE 6]&gt; &lt;link href="default_ie6.css" rel="stylesheet" type="text/css" /&gt; &lt;![endif]--&gt; &lt;script type = "text/javascript" src = "http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"&gt;&lt;/script&gt; &lt;/script&gt; &lt;style type="text/css"&gt; #map { width: 850px; height: 500px; border: 0px; padding: 0px; position: absolute; top: 76px; left: 253px; } &lt;/style&gt; &lt;script src="http://maps.google.com/maps/api/js?key=AIzaSyC9YBiNmZG9jIWY32FzJwn92iuJtJZHjfc&amp;sensor=false" type="text/javascript"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; var icon = new google.maps.MarkerImage("http://maps.google.com/mapfiles/ms/micons/blue.png", new google.maps.Size(32, 32), new google.maps.Point(0, 0), new google.maps.Point(16, 32)); var center = null; var map = null; var currentPopup; var bounds = new google.maps.LatLngBounds(); function addMarker(lat, lng, info) { var pt = new google.maps.LatLng(lat, lng); bounds.extend(pt); var marker = new google.maps.Marker({ position: pt, icon: icon, map: map }); var popup = new google.maps.InfoWindow({ content: info, maxWidth: 300 }); google.maps.event.addListener(marker, "click", function() { if (currentPopup != null) { currentPopup.close(); currentPopup = null; } popup.open(map, marker); currentPopup = popup; }); google.maps.event.addListener(popup, "closeclick", function() { map.panTo(center); currentPopup = null; }); } function initMap() { map = new google.maps.Map(document.getElementById("map"), { center: new google.maps.LatLng(0, 0), zoom: 14, mapTypeId: google.maps.MapTypeId.ROADMAP, mapTypeControl: true, mapTypeControlOptions: { style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR }, navigationControl: true, navigationControlOptions: { style: google.maps.NavigationControlStyle.ZOOM_PAN } }); &lt;?php $query = mysql_query("SELECT lattitude, longitude FROM user u INER JOIN village v ON u.village = v.id")or die(mysql_error()); while($row = mysql_fetch_array($query)) { // $name = $row['user_name']; $lat = $row['lattitude']; $lon = $row['longitude']; //$desc = $row['desc']; //'&lt;b&gt;$name&lt;/b&gt; echo("addMarker($lat, $lon &lt;br /&gt;');\n"); } ?&gt; center = bounds.getCenter(); map.fitBounds(bounds); } &lt;/script&gt; &lt;/head&gt; &lt;body onload="initMap()" style="margin:0px; border:0px; padding:0px;"&gt; &lt;?php /*require_once('header.php');*/ ?&gt; &lt;div id="wrapper"&gt; &lt;div id="page-wrapper"&gt; &lt;div id="page"&gt; &lt;div id="wide-content"&gt; &lt;div id="map"&gt;&lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;?php /*require_once('footer.php');*/ ?&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <h1>database stucture</h1> <p>village table:</p> <ul> <li>id</li> <li>village_name</li> <li>district_id</li> <li>lattitude</li> <li>longitude</li> </ul> <p>user table:</p> <ul> <li>user_id</li> <li>first_name</li> <li>last_name</li> <li>governorate</li> <li>district</li> <li>village</li> <li>birth_date</li> <li>email_address</li> <li>specialization</li> <li>user_name</li> <li>password</li> <li>interest</li> <li>registered_date</li> <li>last_log_date</li> </ul> <p>I think the problem is in the query of the INNER JOIN.</p>
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