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- // Get parameters from URL
- $center_lat = $_GET["lat"];
- $center_lng = $_GET["lng"];
- $radius = $_GET["radius"];
- // Start XML file, create parent node
- $dom = new DOMDocument("1.0");
- $node = $dom->createElement("markers");
- $parnode = $dom->appendChild($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());
- }
- // Search the rows in the markers table
- $query = sprintf("SELECT address, name, lat, lng, ( 3959 * acos( cos( radians('%s') ) * cos( radians( lat ) ) * cos( radians( lng ) - radians('%s') ) + sin( radians('%s') ) * sin( radians( lat ) ) ) ) AS distance FROM markers HAVING distance < '%s' ORDER BY distance LIMIT 0 , 20",
- mysql_real_escape_string($center_lat),
- mysql_real_escape_string($center_lng),
- mysql_real_escape_string($center_lat),
- mysql_real_escape_string($radius));
- $result = mysql_query($query);
- $result = mysql_query($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)){
- $node = $dom->createElement("marker");
- $newnode = $parnode->appendChild($node);
- $newnode->setAttribute("name", $row['name']);
- $newnode->setAttribute("address", $row['address']);
- $newnode->setAttribute("lat", $row['lat']);
- $newnode->setAttribute("lng", $row['lng']);
- $newnode->setAttribute("distance", $row['distance']);
- }
- echo $dom->saveXML();
- ?>
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