我希望能找到一个PHP技术天才帮我解决问题。我有一个数据库表叫baeir,它包含以下字段:
b_id(主键)
b_name
hrepparid(不需显示)
stjarna(不需显示)
lat
lng
comments
表中包含农场名称(b_name)、地理坐标(lat、lng)和注释(如果有的话)。
我的需求是把这些数据导出到kml文件中。我已经尝试过按照Google网站上的教程去做了,也获得了成功,但一旦我尝试编辑,它就崩溃了。据我所知,kml文件基本上是一个XML文件,但不幸的是,我的PHP技能还不足以解决这个问题。
希望有人可以帮忙:-))
这是我从Google获取的代码,但它看起来太复杂了。是否有简化代码的方法,只包含我需要的变量呢?
b_id(主键)
b_name
hrepparid(不需显示)
stjarna(不需显示)
lat
lng
comments
表中包含农场名称(b_name)、地理坐标(lat、lng)和注释(如果有的话)。
我的需求是把这些数据导出到kml文件中。我已经尝试过按照Google网站上的教程去做了,也获得了成功,但一旦我尝试编辑,它就崩溃了。据我所知,kml文件基本上是一个XML文件,但不幸的是,我的PHP技能还不足以解决这个问题。
希望有人可以帮忙:-))
这是我从Google获取的代码,但它看起来太复杂了。是否有简化代码的方法,只包含我需要的变量呢?
<?php
require('phpsqlajax_dbinfo.php');
// Opens a connection to a MySQL server.
$connection = mysql_connect ($server, $username, $password);
if (!$connection)
{
die('Not connected : ' . mysql_error());
}
// Sets the active MySQL database.
$db_selected = mysql_select_db($database, $connection);
if (!$db_selected)
{
die('Can\'t use db : ' . mysql_error());
}
// Selects all the rows in the markers table.
$query = 'SELECT * FROM markers WHERE 1';
$result = mysql_query($query);
if (!$result)
{
die('Invalid query: ' . mysql_error());
}
// Creates the Document.
$dom = new DOMDocument('1.0', 'UTF-8');
// Creates the root KML element and appends it to the root document.
$node = $dom->createElementNS('http://earth.google.com/kml/2.1', 'kml');
$parNode = $dom->appendChild($node);
// Creates a KML Document element and append it to the KML element.
$dnode = $dom->createElement('Document');
$docNode = $parNode->appendChild($dnode);
// Creates the two Style elements, one for restaurant and one for bar, and append the elements to the Document element.
$restStyleNode = $dom->createElement('Style');
$restStyleNode->setAttribute('id', 'restaurantStyle');
$restIconstyleNode = $dom->createElement('IconStyle');
$restIconstyleNode->setAttribute('id', 'restaurantIcon');
$restIconNode = $dom->createElement('Icon');
$restHref = $dom->createElement('href', 'http://maps.google.com/mapfiles/kml/pal2/icon63.png');
$restIconNode->appendChild($restHref);
$restIconstyleNode->appendChild($restIconNode);
$restStyleNode->appendChild($restIconstyleNode);
$docNode->appendChild($restStyleNode);
$barStyleNode = $dom->createElement('Style');
$barStyleNode->setAttribute('id', 'barStyle');
$barIconstyleNode = $dom->createElement('IconStyle');
$barIconstyleNode->setAttribute('id', 'barIcon');
$barIconNode = $dom->createElement('Icon');
$barHref = $dom->createElement('href', 'http://maps.google.com/mapfiles/kml/pal2/icon27.png');
$barIconNode->appendChild($barHref);
$barIconstyleNode->appendChild($barIconNode);
$barStyleNode->appendChild($barIconstyleNode);
$docNode->appendChild($barStyleNode);
// Iterates through the MySQL results, creating one Placemark for each row.
while ($row = @mysql_fetch_assoc($result))
{
// Creates a Placemark and append it to the Document.
$node = $dom->createElement('Placemark');
$placeNode = $docNode->appendChild($node);
// Creates an id attribute and assign it the value of id column.
$placeNode->setAttribute('id', 'placemark' . $row['id']);
// Create name, and description elements and assigns them the values of the name and address columns from the results.
$nameNode = $dom->createElement('name',htmlentities($row['name']));
$placeNode->appendChild($nameNode);
$descNode = $dom->createElement('description', $row['address']);
$placeNode->appendChild($descNode);
$styleUrl = $dom->createElement('styleUrl', '#' . $row['type'] . 'Style');
$placeNode->appendChild($styleUrl);
// Creates a Point element.
$pointNode = $dom->createElement('Point');
$placeNode->appendChild($pointNode);
// Creates a coordinates element and gives it the value of the lng and lat columns from the results.
$coorStr = $row['lng'] . ',' . $row['lat'];
$coorNode = $dom->createElement('coordinates', $coorStr);
$pointNode->appendChild($coorNode);
}
$kmlOutput = $dom->saveXML();
while (@ob_end_clean());
header('content-type:text/xml;');
echo $kmlOutput;
?>