需要计算kml文件中有多少个子标记

Question

I have some work to convert kml files and insert to mysql database
I have a little bit confuse to count how many child tag folder under my kml files
here is a little kml files

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:atom="http://www.w3.org/2005/Atom">
<Document>
    <name>FTTH 5 Cities 60K 20150409.kmz</name>
    <open>1</open>
    <Folder>
        <name>Kebun Jeruk, Jakarta</name>
        <Folder>
            <name>olt</name>
        </Folder>
        <Folder>
            <name>FEEDER</name>
        </Folder>
    </Folder>
    <Folder>
        <name>Kebun Jahe, Jakarta</name>
        <Folder>
            <name>olt</name>
        </Folder>
    </Folder>
</Document>
</kml>

and here is another one

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:atom="http://www.w3.org/2005/Atom">
<Document>
    <name>FTTH 5 Cities 60K 20150409.kmz</name>
    <open>1</open>
    <Folder>
        <name>Kebun Jeruk, Jakarta</name>
        <Folder>
            <name>olt</name>
        </Folder>
        <Folder>
            <name>FEEDER</name>
        </Folder>
        <Folder>
            <name>CLUSTER FTTH KEBUN JERUK</name>
        </Folder>
    </Folder>
</Document>
</kml>

my present code to count is

$file = $_FILES['fileupload']['tmp_name'];
$xml_file = file_get_contents($file);
$xml = simplexml_load_string($xml_file);
$decodearray = json_decode(json_encode((array)$xml),1);

echo count($decodearray['Document']['Folder']);

need to count child Folder tag of Document->Folder(1st) ignore other
result I got from both kml file is 2 shold be 3 from another sample

</div>

Answer 1

finally little trick I found do the result

$file = 'file.kml';
$xml_file = file_get_contents($file);
$xml = simplexml_load_string($xml_file);
$decodearray = json_decode(json_encode((array)$xml),1);

$nowdatetime = date_create();
$tstamp = date_timestamp_get($nowdatetime);

switch (!isset($decodearray['Document']['Folder'][0])) {
  case true:
    $docfolder = $decodearray['Document']['Folder'];
    break;
  case false:
    $docfolder = $decodearray['Document']['Folder'][0];
    break;
}
echo count($docfolder['Folder']);

simple switch case to indexing array help much..

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