解析php中的DOM（比如在jQuery中）[重复]

Question

Possible Duplicate:
How to parse HTML with PHP?

I need to parse a string inside a td tag. I can do this using jQuery with the following:

$("#right .olddata:first td.numeric:first").html()

If I have the HTML code in a string variable, how can I get the content of the same td?

Answer 1

You can use DOMDocument and DOMXPath.

Example (our HTML is in a string variable $html):

$doc = new DOMDocument();
$doc->loadHTML($html);
$XPath = new DOMXPath($doc);
$tr = $XPath->query('//*[@id="right"]//*[@class="olddata"][1]//td[@class="numeric"][1]');
$tr = $tr->item(0);
$trHTML = $tr->nodeValue;

Demo: http://codepad.org/XmGPgrWp