php dom创建元素但自关闭

Question

我想创建一个 html 块，如下所示：

<media>

    <media-reference source='15.jpg' />

    <media-caption>caption</media-caption>

    <hasSyndicationRights>1</hasSyndicationRights>

    <licenseId>1</licenseId>

    <licensorName>name</licensorName>

</media>

但是在我的代码中<media-reference>是这样关闭的</media-reference>。

我怎样才能关闭那个标签？

这是我的代码：

$valFieldBody = '<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Odio labore aut hic soluta! Animi quaerat unde commodi minus dicta, a quidem. Soluta quaerat delectus, id, dolor ex placeat molestiae quae.</p><p><img  height="500" src="15.jpg" width="500"/></p>';

$htmlEncoded = mb_convert_encoding($valFieldBody, 'HTML-ENTITIES', 'UTF-8');

$doc = new DOMDocument;

$opcionesLibXML = LIBXML_COMPACT | LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD;

libxml_use_internal_errors(true);

@$doc->loadHTML($htmlEncoded, $opcionesLibXML);

libxml_use_internal_errors(false);

$img_tag = $doc->getElementsByTagName('img');

foreach ($img_tag as $key => $img_items){

    $img_src = $img_items->getAttribute('src');

    $tag_media = $doc->createElement('media');

    $tag_media_reference = $doc->createElement('media-reference');

    $tag_media_reference->setAttribute('mime-type','image/jpg');

    $tag_media_reference->setAttribute('source',$img_src);

    $tag_media_caption = $doc->createElement('media-caption',$img_title);

    $tag_hasSyndicationRights = $doc->createElement('hasSyndicationRights','1');

    $tag_licenseId = $doc->createElement('licenseId','1');

    $tag_licensorName = $doc->createElement('licensorName',$img_title);

    $tag_media->appendChild($tag_media_reference);

    $tag_media->appendChild($tag_media_caption);

    $tag_media->appendChild($tag_hasSyndicationRights);

    $tag_media->appendChild($tag_licenseId);

    $tag_media->appendChild($tag_licensorName);

    $img_items->parentNode->replaceChild($tag_media, $img_items);

}

$valFieldBody = $doc->saveHTML($doc->documentElement);

现在我str_replace用来改变它：

$valFieldBody = str_replace("></media-reference>"," />", $valFieldBody);

Answer 1

问题是saveHTML()使用它自己的规则创建输出（据我所知）并且并不总是根据 XHTML 标准编写内容。相反，如果你使用它写出来，saveXML()你应该得到一个更标准的输出$valFieldBody = $doc->saveXML($doc->documentElement);这使...<p>&nbsp; &nbsp; Lorem ipsum dolor sit amet, consectetur adipisicing elit. Odio labore&nbsp; &nbsp; aut hic soluta! Animi quaerat unde commodi minus dicta, a quidem.&nbsp; &nbsp; Soluta quaerat delectus, id, dolor ex placeat molestiae quae.&nbsp; &nbsp; <p>&nbsp; &nbsp; &nbsp; &nbsp; <media>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <media-reference mime-type="image/jpg"&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; source="15.jpg" />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <media-caption>abcd</media-caption>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <hasSyndicationRights>1</hasSyndicationRights>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <licenseId>1</licenseId>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <licensorName>abcd</licensorName>&nbsp; &nbsp; &nbsp; &nbsp; </media>&nbsp; &nbsp; </p></p>（请注意，如果您的原始来源不是 XHTML，则保存为 XML 实际上可能会导致其他问题）