我有一个包含多个标签的字符串。我想获取所有内容并将它们连接到一个有效的结构。例如：<html><body><div>Content</div></body></html><html><body><div>Content</div></body></html><html><body><div>Content</div></body></html><html><body><div>Content</div></body></html>应该是：<html> <body> <div>Content</div> <div>Content</div> <div>Content</div> </body></html>我当前的代码如下所示： libxml_use_internal_errors(true); $newDom = new DOMDocument(); $newBody = ""; $newDom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8')); $bodyTags = $newDom->getElementsByTagName("body"); foreach($bodyTags as $body) { $newBody .= $newDom->saveHTML($body); }$newBody现在包含所有正文标签：<body><div>Content</div></body><body><div>Content</div></body><body><div>Content</div></body>如何只保存每个正文标签的HTML内容？$newBody编辑：基于@NigelRen的答案，这是我的解决方案： libxml_use_internal_errors(true); $newDom = new DOMDocument(); $newBody = ''; $newDom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8')); $bodyTags = $newDom->getElementsByTagName("body"); foreach($bodyTags as $body) { foreach ($body->childNodes as $node) { $newBody .= $newDom->saveHTML($node); } } $newDom = new DOMDocument(); $newDom->loadHTML(mb_convert_encoding($newBody, 'HTML-ENTITIES', 'UTF-8')); $newBody = $newDom->saveHTML();
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TA贡献1812条经验 获得超5个赞
这很尴尬，因为当您使用它时，它将尝试修复原始文档中的HTML。这创建了一个结构，它不是你所认为的。loadHTML()
但是，如果您有文档的基本大纲，则以下内容会将标记的内容复制到新文档（代码中的注释）...<body>
$html = '<html><body><div>Content1</div></body></html>
<html><body><div>Content2</div></body></html>
<html><body><div>Content3</div></body></html>';
libxml_use_internal_errors(true);
$newDom = new DOMDocument();
// New document with final code
$newBody = new DOMDocument();
$newDom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'));
// Set up basic template for new doucument
$newBody->loadHTML("<html><body /></html>");
// Find where to add any new content
$addBody = $newBody->getElementsByTagName("body")[0];
// Find the existing content to add
$bodyTags = $newDom->getElementsByTagName("body");
foreach($bodyTags as $body) {
// Add all of the contents of the <body> tag into the new document
foreach ( $body->childNodes as $node ) {
// Import the node to copy to the new document and add it in
$addBody->appendChild($newBody->importNode($node, true));
}
}
echo $newBody->saveHTML();
这给了...
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body><div>Content1</div><div>Content2</div><div>Content3</div></body></html>
限制是不会保留标记之外的任何内容和标记的任何属性。<body><body>
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