rss-bridge/bridges/DuckDuckGoBridge.php

<?php
class DuckDuckGoBridge extends BridgeAbstract
{
	const MAINTAINER = "Astalaseven";
	const NAME = "DuckDuckGo";
	const URI = "https://duckduckgo.com/";
	const CACHE_TIMEOUT = 21600; // 6h
	const DESCRIPTION = "Returns results from DuckDuckGo.";

	const SORT_DATE = '+sort:date';
	const SORT_RELEVANCE = '';

	const PARAMETERS = array( array(
		'u' => array(
			'name' => 'keyword',
			'required' =>true),
		'sort' => array(
			'name' => 'sort by',
			'type' => 'list',
			'required' =>false,
			'values' => array(
				'date' =>self::SORT_DATE,
				'relevance' =>self::SORT_RELEVANCE
				),
			'defaultValue' =>self::SORT_DATE
			)
		));

	public function collectData()
	{
		$html = getSimpleHTMLDOM(self::URI.'html/?q='.$this->getInput('u').$this->getInput('sort'))
			or returnServerError('Could not request DuckDuckGo.');

		foreach ($html->find('div.results_links') as $element) {
			$item = array();
			$item['uri'] = $element->find('a', 0)->href;
			$item['title'] = $element->find('a', 1)->innertext;
			$item['content'] = $element->find('div.snippet', 0)->plaintext;
			$this->items[] = $item;
		}
	}
}