无法显示谷歌地图标记

这里是PHP代码无法显示谷歌地图标记

<?php 
require("dbinfo.php"); 

// Start XML file, create parent node 
$doc = domxml_new_doc("1.0"); 
$node = $doc->create_element("markers"); 
$parnode = $doc->append_child($node); 

// Opens a connection to a MySQL server 
$connection=mysql_connect ('localhost', $username, $password); 
if (!$connection) { 
    die('Not connected : ' . mysql_error()); 
} 

// Set the active MySQL database 
$db_selected = mysql_select_db($database, $connection); 
if (!$db_selected) { 
    die ('Can\'t use db : ' . mysql_error()); 
} 

// Select all the rows in the markers table 
$query = "SELECT * FROM markers WHERE 1"; 
$result = mysql_query($query); 
if (!$result) { 
    die('Invalid query: ' . mysql_error()); 
} 

header("Content-type: text/xml"); 

// Iterate through the rows, adding XML nodes for each 
while ($row = @mysql_fetch_assoc($result)){ 
    // ADD TO XML DOCUMENT NODE 
    $node = $doc->create_element("marker"); 
    $newnode = $parnode->append_child($node); 

    $newnode->set_attribute("name", $row['name']); 
    $newnode->set_attribute("address", $row['address']); 
    $newnode->set_attribute("lat", $row['lat']); 
    $newnode->set_attribute("lng", $row['lng']); 
    $newnode->set_attribute("type", $row['type']); 
} 

$xmlfile = $doc->dump_mem(); 
echo $xmlfile; 

?>

这里HTML与JavaScript代码

<!DOCTYPE html > 
    <head> 
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> 
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/> 
<title>PHP/MySQL & Google Maps Example</title> 
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script> 
<script type="text/javascript"> 
//<![CDATA[ 

var customIcons = { 
    restaurant: { 
    icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png', 
    shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png' 
    }, 
    bar: { 
    icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png', 
    shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png' 
    } 
    }; 

function load() { 
    var map = new google.maps.Map(document.getElementById("map"), { 
    center: new google.maps.LatLng(47.6145, -122.3418), 
    zoom: 13, 
    mapTypeId: google.maps.MapTypeId.ROADMAP 
    }); 
    var infoWindow = new google.maps.InfoWindow(); 

    // Change this depending on the name of your PHP file 
    downloadUrl("phpsqlajax_genxml.php", function(data) { 
    var xml = data.responseXML; 
    var markers = xml.documentElement.getElementsByTagName("marker"); 
    for (var i = 0; i < markers.length; i++) { 
     var name = markers[i].getAttribute("name"); 
     var address = markers[i].getAttribute("address"); 
     var type = markers[i].getAttribute("type"); 
     var point = new google.maps.LatLng(
      parseFloat(markers[i].getAttribute("lat")), 
      parseFloat(markers[i].getAttribute("lng"))); 
     var html = "<b>" + name + "</b> <br/>" + address; 
     var icon = eval('customIcons'+'.'+type) || {}; 
     var marker = new google.maps.Marker({ 
     map: map, 
     position: point, 
     icon: new google.maps.MarkerImage(icon.icon), 
    shadow: new google.maps.MarkerImage(icon.shadow) 
     }); 
     bindInfoWindow(marker, map, infoWindow, html); 
    } 
    }); 
} 

function bindInfoWindow(marker, map, infoWindow, html) { 
    google.maps.event.addListener(marker, 'click', function() { 
    infoWindow.setContent(html); 
    infoWindow.open(map, marker); 
    }); 
} 

function downloadUrl(url, callback) { 
    var request = window.ActiveXObject ? 
     new ActiveXObject('Microsoft.XMLHTTP') : 
     new XMLHttpRequest; 

    request.onreadystatechange = function() { 
    if (request.readyState == 4) { 
     request.onreadystatechange = doNothing; 
     callback(request, request.status); 
    } 
    }; 

    request.open('GET', url, true); 
    request.send(null); 
} 

function doNothing() {} 

//]]> 

</script> 

</head> 

<body onload="load()"> 
<div id="map" style="width: 500px; height: 300px"></div> 
</body> 

</html>

我只是想https://developers.google.com/maps/articles/phpsqlajax_v3，我不知道什么是错的我的代码我检查了数据库，XML。它的所有工作.. 任何帮助将非常感激。非常感谢你。

来源

2012-11-11 Andre malupet

你在这一行非法空白：

<script type="text/javascript" src="http://maps.googleapis.com/maps/api /js?sensor=false"></script>

将其更改为

<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>

working example（使用this一个用于数据的本地副本）

来源

2012-11-11 15:45:23 geocodezip

我这里的原始代码与你发布的代码相同，但它仍然不显示标记。你能看到其他可能错误的东西吗？ –

然后发布一个链接到您的活动地图，显示问题或看看我发布的工作示例。你的代码和那个一样吗？ – geocodezip

我将downloadurl更改为预期输出xmlfile，它工作正常！所以这是否意味着我发布的php代码不是以xml的形式输出数据库？如果是这样，我该如何解决它。谢谢。 –

试试：

var icon = customIcons['simple'] || {}; 
      var marker = new google.maps.Marker({ 
      map: map, 
      position: point, 
      icon: icon.icon, 
      shadow: icon.shadow 
      });

来源

2013-07-19 11:34:41 Hamender

无法显示谷歌地图标记

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