Script to parse a kml file

parse-kml.php

<?php

// Enter the name of the KML file here.
$kml_filename = '';

$xml = simplexml_load_file($kml_filename);
$folders = $xml->Document->Folder;
foreach ($folders as $folder) {
    print "Name: " . $folder->name . "\n";
    print "Description: " . $folder->description . "\n";
    $children = $folder->children();
    foreach ($children as $child) {
        print '    Name: ' . $child->name . "\n";
        print '    Description: ' . $child->description . "\n";
        $type = 'NONE';
        $coordinates = '';
        $geom = NULL;
        if (isset($child->Point)) {
            $type = 'POINT';
            $coordinates = $child->Point->coordinates;
            $geom = preg_split('/\s+/', trim($coordinates));
        }
        elseif (isset($child->LineString)) {
            $type = 'LINESTRING';
            $coordinates = $child->LineString->coordinates;
            $geom = preg_split('/\s+/', trim($coordinates));
            if (count($geom) and $geom[0] == $geom[count($geom)-1]) {
                $type = 'POLYGON';
            }
        }
        elseif (isset($child->Polygon)) {
            $type = 'POLYGON';
            $coordinates = $child->Polygon->outerBoundaryIs->LinearRing->coordinates;
            $geom = preg_split('/\s+/', trim($coordinates));
        }
        $coords = array();
        foreach ($geom as $g) {
            $tmp = explode(',', $g);
            $coords[] = "$tmp[0] $tmp[1]";
        }
        if ($type == 'POLYGON') {
            $wkt = $type . '((' . implode(',', $coords) . '))';
        }
        else {
            $wkt = $type . '(' . implode(',', $coords) . ')';
        }
        print '    ' . $wkt . "\n";
    }
}