Question

您能告诉我有关“如何使用php在Google地图中保存位置”的示例吗？我正在创建一个属性网站，当管理员添加新属性时，他们需要在Google地图上保存位置。请帮忙。

提前致谢

Answer 1

第一步是将您的地址设置为url编码状态，以便在Google地理编码API中使用。这是一个示例：

$Address = '';
$format = 'xml'; // Set this to xml or json
if(!empty($row['Address_1'])) $Address .= ($row['Address_1']);
if(!empty($row['Address_2'])) $Address .= ($row['Address_2']);
if(!empty($Address)) $Address .= ",+";
if(!empty($row['City'])) $Address .= ($row['City']);
if(!empty($Address)) $Address .= ",+";
if(!empty($row['State'])) $Address .= ($row['State']);
$Address = str_replace(' ', '+', $Address);
$url = 'http://maps.googleapis.com/maps/api/geocode/'.$format.'?address='.htmlentities($Address).'&sensor=false';

接下来，您将要获取结果并存储它：

if($format == 'xml')
{
    $document = new DOMDocument('1.0');
    $document->load($url);

    // Check Status
    $RequestStatus = $document->getElementsByTagName("status")->item(0)->firstChild->nodeValue;
    if($RequestStatus !== 'OK')
    {
        echo("There was an error with the request. The status returned was: ".$RequestStatus);
    }

    // Grab the Geometry->Location Node
    $GeoLoc = $document->getElementsByTagName("location")->item(0);
    foreach ($GeoLoc->childNodes as $node)
    {
        if($node->nodeName == 'lat') echo "Latitude: " . $node->nodeValue . "<br />";
        if($node->nodeName == 'lng') echo "Longitude: " . $node->nodeValue . "<br />";
    }
}
else if($format == 'json')
{
    $json = file_get_contents($url,0,null,null);
    $json_output = json_decode($json, true);

    if($json_output['status'] != 'OK')
    {
        echo("There was an error with the request. The status returned was: ".$json_output['status']);
        // Set your lat/long data to 0, null, etc
    }
    foreach ($json_output['results'] as $result)
    {
        echo "Latitude: " . $result['geometry']['location']['lat'] . "<br />";
        echo "Longitude: " . $result['geometry']['location']['lng'] . "<br />";
        // Store your lat/long data in your database
    }

}

Answer 2

参考http://code.google.com/apis/maps/documentation/javascript/tutorial.html

Answer 3

我通过以下方式解决它（虽然它适用于GM2，它适用于Joomla模块）：

1.Get location name from db (which stored by admin)
2.Get the latitude and longitude of the place using getLatLng.
3.Use the latitude and longitude to plot the place in map.

如何在PHP中保存谷歌地图上的位置

3 个答案: