get specific values of array not showing - php

Question

This is what my array looks like :
Array (
[0] => SimpleXMLElement Object (
[key] => Array (
[0] => Track ID
[1] => Name
[2] => Artist
[3] => Album Artist
[4] => Composer
[5] => Album
[6] => Genre
[7] => Kind
[8] => Size
[9] => Total Time
[10] => Disc Number
[11] => Disc Count
[12] => Track Number
[13] => Year
[14] => Date Modified
[15] => Date Added
[16] => Bit Rate
[17] => Sample Rate
[18] => Play Count
[19] => Play Date
[20] => Play Date UTC
[21] => Artwork Count
[22] => Persistent ID
[23] => Track Type
[24] => Location
[25] => File Folder Count
[26] => Library Folder Count )
[integer] => Array (
[0] => 2056
[1] => 3732918
[2] => 230661
[3] => 1
[4] => 1
[5] => 1
[6] => 1993
[7] => 128
[8] => 44100
[9] => 3
[10] => 3439412487
[11] => 1
[12] => 5
[13] => 1 )
[string] => Array (
[0] => Eye of the Tiger
[1] => Survivor
[2] => Survivor
[3] => Frankie Sullivan/Jim Peterik
[4] => Greatest Hits
[5] => Rock
[6] => MPEG audio file
[7] => 772F0F53F195E705
[8] => File
[9] => file://localhost/Users/cameron/Music/iTunes/iTunes%20Media/Music/Survivor/Greatest%20Hits/01%20Eye%20of%20the%20Tiger.mp3 )
[date] => Array (
[0] => 2012-08-27T17:01:00Z
[1] => 2012-08-27T17:01:03Z
[2] => 2012-12-27T07:21:27Z ) )
that's 1 result, there is about 50 of them repeated.
I am trying to select the artist value in this case : Frankie Sullivan/Jim Peterik
please note: there is about 50 other results that come after this first one, so I would like to do a foreach to display all results.
any suggestions? I am stuck.this is the code I used to get these results:
$xml = simplexml_load_file('Library.xml');
$xmlx = $xml->dict->dict->dict->key;
$artist = $xmlx->xpath("//dict[key='Artist']");
echo "<pre>" . print_r($artist, true) . "</pre>";

Answer 1

It seems that you have an array of SimpleXMLElement,
so you can iterate over your array and use the SimpleXMLElement facilities.
Try:
foreach($yourArray as $simpleXmlElement)
{
// Retrieve the name
echo $simpleXmlElement->string[3];
}
Take a look at the documentation for more question: SimpleXMLElement
For your specific problem, assuming the key and string are synchronized, you can try:
// Loop on your array of SimpleXMLElement
foreach($yourArray as $simpleXmlElement)
{
// Initialize the position and found value
$position = 0;
$found = false;
// Loop on the sub array 'key' and search the 'Artist Album' position
foreach($simpleXmlElement->key as $index => $value)
{
if ($value == "Album Artist")
{
$found = true;
break;
}
// Not found, increment position
$position++;
}
// Retrieve the name if found the artist album key
if ($found)
echo $simpleXmlElement->string[$position];
}
As
[3] => Album Artist
will give the position 3
Then, when retrieving the string value, it will return Frankie Sullivan/Jim Peterik