PHP 谷歌地图地理编码 XML 加载问题

Question

这真的很奇怪，让我感到困惑。我有一个 PHP 脚本，它从地址输入表单收集数据，将其格式化为 googlemaps 地理编码服务，然后加载该服务返回的 xml 并从中提取纬度/经度。奇怪的是，某些地址返回“url not loading”死消息，但是当我复制脚本发送的回显的确切字符串并将其粘贴到我的浏览器中时，我实际上得到了 xml 文件。有人知道这里会发生什么吗？

这是回显的字符串。也许有人可以告诉我 PHP 不喜欢这个 URL 的什么？

http://maps.google.com/maps/geo?output=xml&key=ABQIAAAAZe-W-lkccZSM2qC_Ci4J nBS97eShVNVCdPw2dK9jd_Ls-9Sg7hSJTMXMmezqrmN9bDDbO_CSRwChtw&q=285+东+格兰德+大道，+福克斯 Lake,+IL,+60020&sensor=true_or_false

这是脚本：

//This section sends HTTP geocode to google and recieves the XML
$googlekey = "ABQIAAAAZe-W-lkccZSM2qC_Ci4JnBS97eShVNVCdPw2dK9jd_Ls-9Sg7hSJTMXMmezqrmN9bDDbO_CSRwChtw";
$mapAddress = urlencode($barAddress).",+".$barCity.",+".$barState.",+".$barZip;
echo $mapAddress."<br />";
$googleURL = "http://maps.google.com/maps/geo?output=xml&key=".$googlekey."&q=".$mapAddress."&sensor=true_or_false";
echo $googleURL."<br />";
$googlexml = simplexml_load_file($googleURL) or die("url not loading<br />");
$status = $googlexml - > Response - > Status - > code;
if (strcmp($status, "200") == 0) {
    echo "barID:".$barID;
    // Successful geocode
    $coordinates = $googlexml - > Response - > Placemark - > Point - > coordinates;
    $coordinatesSplit = split(",", $coordinates);
    // Format: Longitude, Latitude, Altitude
    $lat = $coordinatesSplit[1];
    $lng = $coordinatesSplit[0];
    echo "lat:".$lat." lon:".$lng;
    $xmlUpdate = "/".$barID."/".$barID.".xml";

    //This is the final query that updates
    $updateQuery = sprintf("UPDATE userBars "." SET lat = '%s', lng = '%s', barXML = '%s' "."  WHERE barID = '%s';", mysql_real_escape_string($lat), mysql_real_escape_string($lng), mysql_real_escape_string($xmlUpdate), mysql_real_escape_string($barID));
    $updateResult = mysql_query($updateQuery);

    if ($updateResult) {
        echo "Successfully Geocoded!<br />";
    } else {
        echo "Geocode Not Successful!";
    }
} else {
    echo "Geocode Failed.";
}
}
} else {
    echo "Error retrieving barID. Files and entries were not created successfully.<br />";
}