如何使用 PHP Simple HTML DOM Parser 提取标题和元描述？
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How to extract title and meta description using PHP Simple HTML DOM Parser?
提问by Henry The Least
How can I extract a page's titleand meta descriptionusing the PHP Simple HTML DOM Parser?
如何使用PHP Simple HTML DOM Parser提取页面title和元description数据？
I just need the title of the page and the keywords in plain text.
我只需要页面的标题和纯文本的关键字。
采纳答案by Ryan B
I just took a look at the HTML DOM Parser, try:
我只是看了一下 HTML DOM Parser，尝试：
$html = new simple_html_dom();
$html->load_file('xxx'); //put url or filename in place of xxx
$title = $html->find('title');
echo $title->plaintext;
$descr = $html->find('meta[description]');
echo $descr->plaintext;
回答by Faraona
$html = new simple_html_dom();
$html->load_file('some_url');
//To get Meta Title
$meta_title = $html->find("meta[name='title']", 0)->content;
//To get Meta Description
$meta_description = $html->find("meta[name='description']", 0)->content;
//To get Meta Keywords
$meta_keywords = $html->find("meta[name='keywords']", 0)->content;
NOTE: The namesof meta tags are casesensitive!
注意：元标记的名称区分大小写！
回答by chuck911
$html = new simple_html_dom();
$html->load_file('http://www.google.com');
$title = $html->find('title',0)->innertext;
$html->find('title')will return an array
$html->find('title')将返回一个数组
so you should use $html->find('title',0), so does meta[description]
所以你应该使用$html->find('title',0)，元[描述]
回答by Innate
Taken from LeiXC's solution above, you need to use the simple html dom class:
取自上面 LeiXC 的解决方案，您需要使用简单的 html dom 类：
$dom = new simple_html_dom();
$dom->load_file( 'websiteurl.com' );// put your own url in here for testing
$html = str_get_html($dom);
$descr = $html->find("meta[name=description]", 0);
$description = $descr->content;
echo $description;
I have tested this code and yes it is case sensitive (some meta tags use a capital D for description)
我已经测试了这段代码，是的，它区分大小写（某些元标记使用大写 D 进行描述）
Here is some error checking for spelling errors:
以下是拼写错误的一些错误检查：
if( is_object( $html->find("meta[name=description]", 0)) ){
echo $html->find("meta[name=description]", 0)->content;
} elseif( is_object( $html->find("meta[name=Description]", 0)) ){
echo $html->find("meta[name=Description]", 0)->content;
}
回答by Алексей Склейнов
$html->find('meta[name=keywords]',0)->attr['content'];
$html->find('meta[name=description]',0)->attr['content'];
回答by liuqing
$html = new simple_html_dom();
$html->load_file('xxx');
//put url or filename in place of xxx
$title = array_shift($html->find('title'))->innertext;
echo $title;
$descr = array_shift($html->find("meta[name='description']"))->content;
echo $descr;
回答by Sinatrya Yogi Rizal
you can using php code and so simple to know. like here
您可以使用 php 代码，了解起来很简单。像这儿
$result = 'site.com'; $tags = get_meta_tags("html/".$result);
$result = 'site.com'; $tags = get_meta_tags("html/".$result);
回答by LeviXC
The correct answer is:
正确答案是：
$html = str_get_html($html);
$descr = $html->find("meta[name=description]", 0);
$description = $descr->content;
The above code gets html into an object format, then the find method looks for a meta tag with the name description, and finally you need to return the value of the meta tag's content, not the innertext or plaintext as outlined by others.
上面的代码把html转成对象格式，然后find方法寻找名称为description的meta标签，最后你需要返回meta标签内容的值，而不是其他人概述的内文或明文。
This has been tested and used in live code. Best
这已经在实时代码中进行了测试和使用。最好的事物
回答by hitman47
I found the easy way to take description
我找到了描述的简单方法
$html = new simple_html_dom();
$html->load_file('your_url');
$title = $html->load('title')->simpletext; //<title>**Text from here**</title>
$description = $html->load("meta[name='description']", 0)->simpletext; //<meta name="description" content="**Text from here**">
If your line contains extra spaces, then try this
如果你的行包含额外的空格，那么试试这个
$title = trim($title);
$description = trim($description);
