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>

    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>

        <media>

            <media-reference mime-type="image/jpg"

                source="15.jpg" />

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

            <hasSyndicationRights>1</hasSyndicationRights>

            <licenseId>1</licenseId>

            <licensorName>abcd</licensorName>

        </media>

    </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）