scraping without messy regular expressions.The Simple HTML DOM Parser is implemented as a simple PHP class and a few helper functions. It supports CSS selector style screen scraping (such as in jQuery), can handle invalid HTML, and even provides a familiar interface to manipulate a DOM.
Here’s a sample of simplehtmldom in action:
Code:
$html = file_get_dom('http://www.google.com/'); foreach($html->find('a') as $element) echo $element->href;

screen-scraper is a tool for extracting data from websites.

Stateful programmatic web browsing in Python, after Andy Lester’s Perl module.