PHP 返回嵌套 XML

Question

我正在按照下面的代码从文件中检索 XML。然而，当 XML 在 ".$image["url"]." 处变得更深时，我试图检索其中一张图像，但它不起作用。我还需要搜索图像，因为 XML 中的 SIZE 变量有多个标签（下面的 XML）。

在我已经将 $xml->xpath 定义到更高的容器之后，您如何定义它？

$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 它正在搜索。

<?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：不显示图像。

        $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;
    }
}

例如，这将获取缩略图图像 url。