使用php从mysql数据库创建kml文件

我希望这里有一个php天才可以帮助我.我有一个名为baeir的数据库表,它有以下字段:
b_id(主键)
b_name
hrepparid(不需要显示)
stjarna(不需要显示)
LAT
LNG
评论

该表包含一个服务器场的名称(b_name),其地理坐标(lat,lng)和注释 – 如果有的话.

我需要的是将这些数据放入kml文件中.我试图在谷歌的网页上阅读教程,我得到了它的工作但是一旦我尝试编辑,它就转到了h ***.据我所知,kml文件基本上是一个xml文件,但不幸的是我的PHP技能不够先进,无法处理这个问题.

我希望有人能帮帮忙 :-))

这是我从谷歌的代码,它看起来有点太…详细我喜欢.任何想法如何简化代码,以便我可以将我的变量放入其中,没有别的?

<?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;

?>
最佳答案
如上所述,以下Google地图教程完全回答了您的问题:http://code.google.com/apis/kml/articles/phpmysqlkml.html

不幸的是,它没有提出多边形解析的代码(如果你正在管理农场区域显示,你将需要它),但你可以调整LinesString解析方法并实现它.要小心将outerBoundaryIs标记正确嵌入到Polygon标记中,并记住必须复制要正确绘制的多边形的起始点.

    $lineNode = $dom->createElement('Polygon');
$placeNode = $placeNode->appendChild($lineNode);
$exnode = $dom->createElement('extrude', '1');
$lineNode->appendChild($exnode);
$almodenode =$dom->createElement(altitudeMode,'relativeToGround');
$lineNode->appendChild($almodenode);
$outerboundnode = $dom->createElement('outerBoundaryIs');
$placeNode = $placeNode->appendChild($outerboundnode);
$ringnode =$dom->createElement('LinearRing');
$placeNode = $placeNode->appendChild($ringnode);
    // optional styletag colors the polygon
//$stylenode =$dom->createElement(styleUrl,'#transYellowPoly');
//$lineNode->appendChild($stylenode);

//Create a coordinates element and give it the value of the lng and lat columns from the results
//$coorNode = $dom->createElement('coordinates',$row['coordinates']);
$coorNode = $dom->createElement('coordinates',$coordinates);
$placeNode = $placeNode->appendChild($coorNode);

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