How does PhpQuery work? Trying to get the value of <title> tag

问题

I'm new to phpQuery. I need to achieve the simple task of getting the content of the HTML TITLE tag of a webpage. In this case I'm trying to get the title content of "Yahoo!" that should be "Yahoo!".

I'm doing this with phpQuery, but it is now working

// Testing phpQuery
$result = phpQuery::newDocumentFile($scraps['Scrap_yahoo']->getPage('http://www.yahoo.com','','off'))
            ->find('title');
echo $result->text();

Can someone give me a clue on how to achieve this?

Best Regards,

回答1:

I think the problem might be your phpQuery invocation with ::newDocumentFile(). This function needs a filename (not sure if an URL works), but I suspect your ->getPage() actually fetches the file already. If so, then use the normal ::newDocument() like so:

$html = file_get_contents("http://www.yahoo.com/");
$pq = phpQuery::newDocument($html);
print $pq->find("title")->text();

Works for me.

来源：https://stackoverflow.com/questions/4595835/how-does-phpquery-work-trying-to-get-the-value-of-title-tag