PHP DOM Xpath - search for class name

Question

Possible Duplicate:
XPath: How to match attributes that contain a certain string

I'm trying to parse some html with PHP DOM Xpath, but I'm having problems searching for a class name when the element has more than one. I found that if I use the hole attribute value like

$xpath->query('//div[@class="precodet precodeturgente"]'); 

it works, but if I do

$xpath->query('//div[@class="precodet"]');

it won't give me the node value. Sometimes there's only one class, others there are more than one, so what I want to know is if there's a way to search for a single class name.

Solution

You should be able to do

$xpath->query('//div[contains(@class,"precodet")]');

Comments

[Maxim Krizhanovsky]

this would match any class that begins with precodet, for example XprecodetY would be matched

[KoviNET]

What would be solution for matching exactly this class, but not any other class that begins with "precodet" ?