rss-bridge/bridges/GooglePlayStoreBridge.php

<?php
class GooglePlayStoreBridge extends BridgeAbstract {
	const MAINTAINER = 'Yaman Qalieh';
	const NAME = 'Google Play Store';
	const URI = 'https://play.google.com/store/apps';
	const CACHE_TIMEOUT = 3600; // 1h
	const DESCRIPTION = 'Returns the most recent version of an app with its changelog';

	const TEST_DETECT_PARAMETERS = array(
		'https://play.google.com/store/apps/details?id=com.ichi2.anki' => array(
			'id' => 'com.ichi2.anki'
		)
	);

	const PARAMETERS = array(array(
		'id' => array(
			'name' => 'Application ID',
			'exampleValue' => 'com.ichi2.anki',
			'required' => true
		)
	));

	const INFORMATION_MAP = array(
		'Updated' => 'timestamp',
		'Current Version' => 'title',
		'Offered By' => 'author'
	);

	public function collectData() {
		$appuri = static::URI . '/details?id=' . $this->getInput('id');
		$html = getSimpleHTMLDOM($appuri);

		$item = array();
		$item['uri'] = $appuri;
		$item['content'] = $html->find('div[itemprop=description]', 1)->innertext;

		// Find other fields from Additional Information section
		foreach($html->find('.hAyfc') as $info) {
			$index = self::INFORMATION_MAP[$info->first_child()->plaintext] ?? null;
			if (is_null($index)) {
				continue;
			}
			$item[$index] = $info->children(1)->plaintext;
		}

		$this->items[] = $item;
	}

	public function detectParameters($url) {
		// Example: https://play.google.com/store/apps/details?id=com.ichi2.anki

		$params = array();
		$regex = '/^(https?:\/\/)?play\.google\.com\/store\/apps\/details\?id=([^\/&?\n]+)/';
		if(preg_match($regex, $url, $matches) > 0) {
			$params['id'] = urldecode($matches[2]);
			return $params;
		}

		return null;
	}
}