3

以下のxmlファイルがあります:-

 <item> 
  <title>Troggs singer Reg Presley dies at 71</title>  
  <description>Reg Presley, the lead singer of British rock band The Troggs, whose hits in the 1960s included Wild Thing, has died aged 71.</description>  
  <link>http://www.bbc.co.uk/news/uk-21332048#sa-ns_mchannel=rss&amp;ns_source=PublicRSS20-sa</link>  
  <guid isPermaLink="false">http://www.bbc.co.uk/news/uk-21332048</guid>  
  <pubDate>Tue, 05 Feb 2013 01:13:07 GMT</pubDate>  
  <media:thumbnail width="66" height="49" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701366_65701359.jpg"/>  
  <media:thumbnail width="144" height="81" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701387_65701359.jpg"/> 
</item>  
<item> 
  <title>Horsemeat found at Newry cold store</title>  
  <description>Horse DNA has been found in frozen meat in a cold store in Northern Ireland, as Irish police investigate a third case of contamination.</description>  
  <link>http://www.bbc.co.uk/news/world-europe-21331208#sa-ns_mchannel=rss&amp;ns_source=PublicRSS20-sa</link>  
  <guid isPermaLink="false">http://www.bbc.co.uk/news/world-europe-21331208</guid>  
  <pubDate>Mon, 04 Feb 2013 23:47:38 GMT</pubDate>  
  <media:thumbnail width="66" height="49" url="http://news.bbcimg.co.uk/media/images/65700000/jpg/_65700000_002950295-1.jpg"/>  
  <media:thumbnail width="144" height="81" url="http://news.bbcimg.co.uk/media/images/65700000/jpg/_65700001_002950295-1.jpg"/> 
</item>  
<item> 
  <title>US 'will sue' Standard &amp; Poor's</title>  
  <description>Standard &amp; Poor's says it is to be sued by the US government over the credit ratings agency's assessment of mortgage bonds before the financial crisis.</description>  
  <link>http://www.bbc.co.uk/news/21331018#sa-ns_mchannel=rss&amp;ns_source=PublicRSS20-sa</link>  
  <guid isPermaLink="false">http://www.bbc.co.uk/news/21331018</guid>  
  <pubDate>Mon, 04 Feb 2013 22:45:52 GMT</pubDate>  
  <media:thumbnail width="66" height="49" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701717_mediaitem65699884.jpg"/>  
  <media:thumbnail width="144" height="81" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701718_mediaitem65699884.jpg"/> 
   </item>

データを取得するために入力ノードを「項目」として指定すると、すべての項目ノードを表示する代わりに、最後の項目ノードが表示されます.....

私のコードは:-

    $dom->load($url);
    $link = $dom->getElementsByTagName($tag_name);
    $value = array();

    for ($i = 0; $i < $link->length; $i++) {
        $childnode['name'] = $link->item($i)->nodeName;
        $childnode['value'] = $link->item($i)->nodeValue;
        $value[$childnode['name']] = $childnode['value'];
    }

ここで、$url は私の xml ページの URL です $tag_name はノードの名前です。この場合は「item」です

私が得る出力は次のとおりです:-

  US 'will sue' Standard &amp; Poor's.Standard &amp; Poor's says it is to be sued by the US government over the credit ratings agency's assessment of mortgage bonds before the financial crisis.http://www.bbc.co.uk/news/21331018#sa-ns_mchannel=rss&amp;ns_source=PublicRSS20-sa.http://www.bbc.co.uk/news/world-europe-21331208.Mon, 04 Feb 2013 22:45:52 GMT

これは最後のタグのデータです。すべてのアイテムタグのデータが必要で、データを次の形式にしたい:-

title :-  US 'will sue' Standard &amp; Poor's
description :- Standard &amp; Poor's says it is to be sued by the US government over 
the credit ratings agency's assessment of mortgage bonds before the financial crisis

出力に子ノードの名前（ある場合）も必要です...助けてください....

4

4 に答える 4

2

(ルート ノードを忘れないでください。) メソッドの 1 つが、その要素の下にあるすべてのテキスト ノードを連結しているように見えます (xsl:value-of select=. とほぼ同等です)。PHP の DOMDocument クラスおよび関連するクラスについて、私はあまり多くのことをしたことがありません。しかし、できることは、C14N() メソッドを使用して DOMNode を正規化し、結果の文字列を解析することです。きれいではありませんが、必要な結果が得られ、簡単に拡張できます。

    $tag_name = 'item';
    $link = $dom->getElementsByTagName($tag_name);
    for ($i = 0; $i < $link->length; $i++) {
        $treeAsString = $link->item($i)->C14N();
        $curBranchParts = explode("\n",$treeAsString);
        $curBranchPartsSize = count($curBranchParts);
        $curBranchParts = explode("\n",$treeAsString);
        $curBranchPartsSize = count($curBranchParts);
        for ($j = 1; $j < ($curBranchPartsSize - 1); $j++) { 
            $curItem = $curBranchParts[$j];
            $curItemParts = explode('<', $curItem);
            $tagWithContent = $curItemParts[1];
            $tagWithContentParts = explode('>',$tagWithContent);
            $tag = $tagWithContentParts[0];
            $content = $tagWithContentParts[1];

            if (trim($content) != '') echo $tag . ' :- ' . $content . '<br />';
            else echo $tag . '<br />';   
        }
    }
于 2013-02-05T14:28:46.187 に答える
2

「アイテム」ノードのみをループしているようで、他の人が述べたように、各反復で以前の値を上書きしています。

ループ内でprint_r($value) を使用して $value 配列をデバッグする場合。

$dom->load($url);
$link = $dom->getElementsByTagName($tag_name);
$value = array();

for ($i = 0; $i < $link->length; $i++) {
    $childnode['name'] = $link->item($i)->nodeName;
    $childnode['value'] = $link->item($i)->nodeValue;
    $value[$childnode['name']] = $childnode['value'];

    echo 'iteration: ' . $i . '<br />';
    echo '<pre>'; print_r($value); echo '</pre>';
}

あなたはおそらくこのようなものを見るでしょう

// iteration: 0
Array
(
    [item] => Troggs singer Reg Presley dies at 71 ......
)

// iteration: 1
Array
(
    [item] => Horsemeat found at Newry cold store .........
)

// iteration: 2
Array
(
    [item] => US 'will sue' Standard & Poor's .........
)

あなたがすべきことはこれです：

$dom = new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->load($url);
$items = $dom->getElementsByTagName($tag_name);
$values = array();

foreach ($items as $item) {
    $itemProperties = array();

    // Loop through the 'sub' items 
    foreach ($item->childNodes as $child) {
        // Note: using 'localName' to remove the namespace
        if (isset($itemProperties[(string) $child->localName])) {
            // Quickfix to support multiple 'thumbnails' per item (although they have no content)
            $itemProperties[$child->localName] = (array) $itemProperties[$child->localName];
            $itemProperties[$child->localName][] = $child->nodeValue;
        } else {
            $itemProperties[$child->localName] = $child->nodeValue;
        }
    }

    // Append the item to the 'values' array
    $values[] = $itemProperties;

}


// Output the result
echo '<pre>'; print_r($values); echo '</pre>';

どの出力:

Array
(
    [0] => Array
        (
            [title] => Troggs singer Reg Presley dies at 71
            [description] => Reg Presley, the lead singer of British rock band The Troggs, whose hits in the 1960s included Wild Thing, has died aged 71.
            [link] => http://www.bbc.co.uk/news/uk-21332048#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
            [guid] => http://www.bbc.co.uk/news/uk-21332048
            [pubDate] => Tue, 05 Feb 2013 01:13:07 GMT
            [thumbnail] => Array
                (
                    [0] => 
                    [1] => 
                )

        )

    [1] => Array
        (
            [title] => Horsemeat found at Newry cold store
            [description] => Horse DNA has been found in frozen meat in a cold store in Northern Ireland, as Irish police investigate a third case of contamination.
            [link] => http://www.bbc.co.uk/news/world-europe-21331208#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
            [guid] => http://www.bbc.co.uk/news/world-europe-21331208
            [pubDate] => Mon, 04 Feb 2013 23:47:38 GMT
            [thumbnail] => Array
                (
                    [0] => 
                    [1] => 
                )

        )

    [2] => Array
        (
            [title] => US 'will sue' Standard & Poor's
            [description] => Standard & Poor's says it is to be sued by the US government over the credit ratings agency's assessment of mortgage bonds before the financial crisis.
            [link] => http://www.bbc.co.uk/news/21331018#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
            [guid] => http://www.bbc.co.uk/news/21331018
            [pubDate] => Mon, 04 Feb 2013 22:45:52 GMT
            [thumbnail] => Array
                (
                    [0] => 
                    [1] => 
                )

        )

)
于 2013-02-05T23:36:18.993 に答える
1

問題は、ソース XML にルート ノードが必要なことです (任意の名前を付けることができます)。有効な XML であるためには、常にルート ノードが必要です。つまり、すべての有効な XML ファイルには、親または兄弟を持たない要素が 1 つだけ含まれます。ルート ノードを取得すると、XML がオブジェクトに読み込まれます。

例えば：

<root>
    <item> 
      <title>Troggs singer Reg Presley dies at 71</title>  
      <description>Reg Presley, the lead singer of British rock band The Troggs, whose hits in the 1960s included Wild Thing, has died aged 71.</description>  
      <link>http://www.bbc.co.uk/news/uk-21332048#sa-ns_mchannel=rss&amp;ns_source=PublicRSS20-sa</link>  
      <guid isPermaLink="false">http://www.bbc.co.uk/news/uk-21332048</guid>  
      <pubDate>Tue, 05 Feb 2013 01:13:07 GMT</pubDate>  
      <media:thumbnail width="66" height="49" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701366_65701359.jpg"/>  
      <media:thumbnail width="144" height="81" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701387_65701359.jpg"/> 
    </item>  
    <item> 
      <title>Horsemeat found at Newry cold store</title>  
      <description>Horse DNA has been found in frozen meat in a cold store in Northern Ireland, as Irish police investigate a third case of contamination.</description>  
      <link>http://www.bbc.co.uk/news/world-europe-21331208#sa-ns_mchannel=rss&amp;ns_source=PublicRSS20-sa</link>  
      <guid isPermaLink="false">http://www.bbc.co.uk/news/world-europe-21331208</guid>  
      <pubDate>Mon, 04 Feb 2013 23:47:38 GMT</pubDate>  
      <media:thumbnail width="66" height="49" url="http://news.bbcimg.co.uk/media/images/65700000/jpg/_65700000_002950295-1.jpg"/>  
      <media:thumbnail width="144" height="81" url="http://news.bbcimg.co.uk/media/images/65700000/jpg/_65700001_002950295-1.jpg"/> 
    </item>  
    <item> 
      <title>US 'will sue' Standard &amp; Poor's</title>  
      <description>Standard &amp; Poor's says it is to be sued by the US government over the credit ratings agency's assessment of mortgage bonds before the financial crisis.</description>  
      <link>http://www.bbc.co.uk/news/21331018#sa-ns_mchannel=rss&amp;ns_source=PublicRSS20-sa</link>  
      <guid isPermaLink="false">http://www.bbc.co.uk/news/21331018</guid>  
      <pubDate>Mon, 04 Feb 2013 22:45:52 GMT</pubDate>  
      <media:thumbnail width="66" height="49" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701717_mediaitem65699884.jpg"/>  
      <media:thumbnail width="144" height="81" url="http://news.bbcimg.co.uk/media/images/65701000/jpg/_65701718_mediaitem65699884.jpg"/> 
    </item>
</root>
于 2013-02-05T05:21:32.443 に答える
0

コードに問題があると思います：

    for ($i = 0; $i < $link->length; $i++) {
        $childnode['name'] = $link->item($i)->nodeName;
        $childnode['value'] = $link->item($i)->nodeValue;
        $value[$childnode['name']] = $childnode['value'];
    }

$childnode['name']によって新しい値が割り当てられるたびfor loopに、最後に$iが の長さと等しい場合$link.length、この値は に割り当てられ$childnode arrayます。したがって、問題を軽減するには、次のような多次元配列にする必要があります

for ($i = 0; $i < $link->length; $i++) {
    $childnode['name'][$i] = $link->item($i)->nodeName;
    $childnode['value'][$i] = $link->item($i)->nodeValue;
    $value[$childnode['name'][$i]][$i] = $childnode['value'];
}

テストするには:print_r($childnode);

于 2013-02-05T05:02:48.840 に答える