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PHP DOMDocument loadHTML不支持HTML5标签的解决方法

后端开发PHP 773

PHP DOMDocument loadHTML方法并不支持html5标签，运行下面代码的时候

$dom = new DOMDocument();
$dom->loadHTML("<!DOCTYPE HTML>
<html><head><title>test</title></head>
<body>
<nav>
  <ul>
    <li>first
    <li>second
  </ul>
</nav>
<section>
  ...
</section>
</body>
</html>");

会出现错误

Warning: DOMDocument::loadHTML(): Tag nav invalid in Entity, line: 4 in /home/wbkrnl/public_html/new-mvc/1.php on line 17

Warning: DOMDocument::loadHTML(): Tag section invalid in Entity, line: 10 in /home/wbkrnl/public_html/new-mvc/1.php on line 17

解决方法：

1.使用libxml_use_internal_errors忽略错误

$dom = new DOMDocument;
libxml_use_internal_errors(true);
$dom->loadHTML('...');
libxml_clear_errors();

2.使用html5lib for php

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