PHP返回嵌套XML

Question

我從下面的代碼檢索文件中的XML。然而，當XML在".$image["url"]."的位置變得更深時，我試圖檢索其中一個圖像，但它不起作用。我還需要搜索圖像，因爲XML中的SIZE變量有多個標記（下面的XML）。

如何在我已經將$ xml-> xpath定義到更高的容器後定義這個？

$searchurl = "movies.xml"; 
$xml = simplexml_load_file($searchurl); 
$i = 0; 
foreach($xml->xpath('/movies/movie') as $movie){ 
    $image = $xml->xpath('/movies/movie/images/image'); 
    echo "<table id=\"ctable\">" 
     ."<thead><tr><th>" 
     ."<th width=\"100%\"><a href=\"JavaScript:void(0);\" onclick=\"showHide('movie".$movie->id."','span".$movie->id."')\">" 
     ."<span id=\"span".$movie->id."\"><img src=\"images\icon_collapse.gif\" class=\"expand\" alt=\"Expand\"></span>" 
     ."<span>".$movie->name."</span></a></th>" 
     ."<th><span></span></th>" 
     ."</th></tr></thead>"; 
    echo "<table><tfoot id=\"movie".$movie->id."\">" 
     ."<tr><td rowspan=\"6\"><a class=\"thumbnail\" href=\"#thumb\"><img src=\"".$image["url"]."\" height=\"150px\" width=\"150px\"><span><img src=\"".$image["url"]."\"/><br/>".$movie->name."</span></a></td><td rowspan=\"6\"><img class=\"line\" width=\"2\" height=\"100%\"></td><td class=\"jralign\">Movie ID:</td><td>".$movie->id."</td></tr>" 
     ."<tr><td class=\"jralign\">Movie Link:</td><td><a href=\"".$movie->url."\">".$movie->url."</a></td></tr>" 
     ."<tr><td class=\"jralign\">Released:</td><td>".$movie->released."</td></tr>" 
     ."<tr><td class=\"jralign\">Classification:</td><td>".$movie->certification."</td></tr>" 
     ."<tr><td class=\"jralign\">Adult:</td><td>".$movie->adult."</td></tr>" 
     ."<tr><td class=\"jralign\" valign=\"top\">Overview:</td><td>".$movie->overview."</td></tr>" 
     ."</tfoot></table>" 
     ."</table><br/>"; 
    $i++; 
} 

XML正在通過搜索。

<?xml version="1.0" encoding="UTF-8"?> 
<movies> 
    <movie> 
    <score></score> 
    <popularity>3</popularity> 
    <translated></translated> 
    <adult>false</adult> 
    <language>en</language> 
    <original_name>Transformers</original_name> 
    <name>Transformers</name> 
    <alternative_name>The Transformers</alternative_name> 
    <type>movie</type> 
    <id>1858</id> 
    <imdb_id>tt0418279</imdb_id> 
    <url>http://www.themoviedb.org/movie/1858</url> 
    <votes>61</votes> 
    <rating>7.4</rating> 
    <certification>PG-13</certification> 
    <overview>Young teenager Sam Witwicky becomes involved in the ancient struggle between two extraterrestrial factions of transforming robots, the heroic Autobots and the evil Decepticons. Sam holds the clue to unimaginable power and the Decepticons will stop at nothing to retrieve it.</overview> 
    <released>2007-07-04</released> 
    <images> 
     <image type="poster" url="transformers-original.jpg" size="original" width="1000" height="1500" id="4c9ea5cf5e73d67049000233"/> 
     <image type="poster" url="transformers-mid.jpg" size="mid" width="500" height="750" id="4c9ea5cf5e73d67049000233"/> 
     <image type="poster" url="transformers-cover.jpg" size="cover" width="185" height="278" id="4c9ea5cf5e73d67049000233"/> 
     <image type="poster" url="transformers-thumb.jpg" size="thumb" width="92" height="138" id="4c9ea5cf5e73d67049000233"/> 
     </images> 
     <version>141</version> 
     <last_modified_at>2011-01-04 16:33:25</last_modified_at> 
    </movie> 
</movies> 

更新功能：不顯示圖像。

 $searchurl = "movies.xml"; 
     $xml = simplexml_load_file($searchurl); 
foreach($xml->xpath('/movies/movie') as $movie){ 
      $images = $movie->xpath('/images/image'); 
      $image_url = ''; 
      foreach($images as $image) { 
       $attributes = $image->attributes(); 
       if ($attributes['size'] == 'thumb') { 
        $image_url = $attributes['url']; 
        break; 
       } 
      } 
      echo "<table id=\"ctable\">" 
       ."<thead><tr><th>" 
       ."<th width=\"100%\"><a href=\"JavaScript:void(0);\" onclick=\"showHide('movie".$movie->id."','span".$movie->id."')\">" 
       ."<span id=\"span".$movie->id."\"><img src=\"images\icon_collapse.gif\" class=\"expand\" alt=\"Expand\"></span>" 
       ."<span>".$movie->name."</span></a></th>" 
       ."<th><span>".$this->isWatching($movie->id, $uid, $movie->name, 'movie')."</span></th>" 
       ."</th></tr></thead>"; 
      echo "<table><tfoot id=\"movie".$movie->id."\">" 
       ."<tr><td rowspan=\"6\"><a class=\"thumbnail\" href=\"#thumb\"><img src=\"".$image_url."\" height=\"150px\" width=\"150px\"><span><img src=\"".$image_url."\"/><br/>".$movie->name."</span></a></td><td rowspan=\"6\"><img class=\"line\" width=\"2\" height=\"100%\"></td><td class=\"jralign\">Movie ID:</td><td>".$movie->id."</td></tr>" 
       ."<tr><td class=\"jralign\">Movie Link:</td><td><a href=\"".$movie->url."\">".$movie->url."</a></td></tr>" 
       ."<tr><td class=\"jralign\">Released:</td><td>".$movie->released."</td></tr>" 
       ."<tr><td class=\"jralign\">Classification:</td><td>".$movie->certification."</td></tr>" 
       ."<tr><td class=\"jralign\">Adult:</td><td>".$movie->adult."</td></tr>" 
       ."<tr><td class=\"jralign\" valign=\"top\">Overview:</td><td>".$movie->overview."</td></tr>" 
       ."</tfoot></table>" 
       ."</table><br/>"; 
      $i++; 
     } 

Answer 1

$images = $xml->xpath('/movies/movie/images/image'); 
$needed_image_url = ''; 
foreach($images as $image) { 
    $attributes = $image->attributes(); 
    if ($attributes['size'] == 'thumb') { 
     $needed_image_url = $attributes['url']; 
     break; 
    } 
} 

這會搶例如拇指圖像的URL。