/** * @param string $identifier * @param string $strategy * @param string $locale * @return string */ protected function getResponseFromApi($identifier, $strategy, $locale = 'en') { $url = sprintf('https://www.googleapis.com/pagespeedonline/v2/runPagespeed?screenshot=true&url=%s&strategy=%s&locale=%s&key=%s', rawurlencode($identifier), $strategy, $locale, $this->configuration->getKey()); return $this->apiCall($url); }