One*_*ema 9 php dom domdocument
我正在尝试解析文档并获取所有图像标记并更改不同内容的来源.
$domDocument = new DOMDocument();
$domDocument->loadHTML($text);
$imageNodeList = $domDocument->getElementsByTagName('img');
foreach ($imageNodeList as $Image) {
$Image->setAttribute('src', 'lalala');
$domDocument->saveHTML($Image);
}
$text = $domDocument->saveHTML();
$ text最初看起来像这样:
<p>Hi, this is a test, here is an image<img src="http://mysite.com/beer.jpg" width="60" height="95" /> Because I like Beer!</p>
这是输出$ text:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body><p>Hi, this is a test, here is an image<img src="lalala" width="68" height="95"> Because I like Beer!</p></body></html>
我得到了一堆我不需要的额外标签(html,正文和顶部的评论).有没有办法设置DOMDocument以避免添加这些额外的标签？
谢谢!
Wik*_*żew 17
您只需要为方法添加2个标志loadHTML():LIBXML_HTML_NOIMPLIED|LIBXML_HTML_NODEFDTD.即
$domDocument->loadHTML($text, LIBXML_HTML_NOIMPLIED|LIBXML_HTML_NODEFDTD);
请参阅IDEONE演示:
$text = '<p>Hi, this is a test, here is an image<img src="http://example.com/beer.jpg" width="60" height="95" /> Because I like Beer!</p>';
$domDocument = new DOMDocument;
$domDocument->loadHTML($text, LIBXML_HTML_NOIMPLIED|LIBXML_HTML_NODEFDTD);
$imageNodeList = $domDocument->getElementsByTagName('img');
foreach ($imageNodeList as $Image) {
$Image->setAttribute('src', 'lalala');
$domDocument->saveHTML($Image);
}
$text = $domDocument->saveHTML();
echo $text;
输出:
<p>Hi, this is a test, here is an image<img src="lalala" width="60" height="95"> Because I like Beer!</p>
小智 5
不幸的是,DomDocument被延迟了,不会让你这么做.试试这个:
$text = preg_replace('/^<!DOCTYPE.+?>/', '', str_replace( array('<html>', '</html>', '<body>', '</body>'), array('', '', '', ''), $domDocument->saveHTML()));
| 归档时间： |
|
| 查看次数： |
2695 次 |
| 最近记录： |