得到陣列的具體數值沒有顯示

Question

這是我的數組類似：

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)) 

這是1名的結果，存在重複對其的約50。

我想在這種情況下選擇藝術家的價值：Frankie Sullivan/Jim Peterik 請注意：在第一個之後還有大約50個其他結果，所以我想要做一個foreach來顯示所有結果。 有什麼建議嗎？我stuck.this是我用來獲取這些結果的代碼：

$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

看來你有SimpleXMLElement數組， 這樣你就可以遍歷陣列，並且使用SimpleXMLElement設施。

嘗試：

foreach($yourArray as $simpleXmlElement) 
{ 
    // Retrieve the name 
    echo $simpleXmlElement->string[3]; 
} 

看看更多的問題的文檔：SimpleXMLElement

爲了您的具體問題，假設key和string是同步的，你可以嘗試：

// 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 

將給位置3

然後，檢索字符串值時，它會返回Frankie Sullivan/Jim Peterik