Curl::request_multiple( array $requests, array $options ): array

239	public function request_multiple($requests, $options) {240		// If you're not requesting, we can't get any responses ¯\_(ツ)_/¯241		if (empty($requests)) {242			return [];243		}244 245		if (InputValidator::has_array_access($requests) === false || InputValidator::is_iterable($requests) === false) {246			throw InvalidArgument::create(1, '$requests', 'array|ArrayAccess&Traversable', gettype($requests));247		}248 249		if (is_array($options) === false) {250			throw InvalidArgument::create(2, '$options', 'array', gettype($options));251		}252 253		$multihandle = curl_multi_init();254		$subrequests = [];255		$subhandles  = [];256 257		$class = get_class($this);258		foreach ($requests as $id => $request) {259			$subrequests[$id] = new $class();260			$subhandles[$id]  = $subrequests[$id]->get_subrequest_handle($request['url'], $request['headers'], $request['data'], $request['options']);261			$request['options']['hooks']->dispatch('curl.before_multi_add', [&$subhandles[$id]]);262			curl_multi_add_handle($multihandle, $subhandles[$id]);263		}264 265		$completed       = 0;266		$responses       = [];267		$subrequestcount = count($subrequests);268 269		$request['options']['hooks']->dispatch('curl.before_multi_exec', [&$multihandle]);270 271		do {272			$active = 0;273 274			do {275				$status = curl_multi_exec($multihandle, $active);276			} while ($status === CURLM_CALL_MULTI_PERFORM);277 278			$to_process = [];279 280			// Read the information as needed281			while ($done = curl_multi_info_read($multihandle)) {282				$key = array_search($done['handle'], $subhandles, true);283				if (!isset($to_process[$key])) {284					$to_process[$key] = $done;285				}286			}287 288			// Parse the finished requests before we start getting the new ones289			foreach ($to_process as $key => $done) {290				$options = $requests[$key]['options'];291				if ($done['result'] !== CURLE_OK) {292					//get error string for handle.293					$reason          = curl_error($done['handle']);294					$exception       = new CurlException(295						$reason,296						CurlException::EASY,297						$done['handle'],298						$done['result']299					);300					$responses[$key] = $exception;301					$options['hooks']->dispatch('transport.internal.parse_error', [&$responses[$key], $requests[$key]]);302				} else {303					$responses[$key] = $subrequests[$key]->process_response($subrequests[$key]->response_data, $options);304 305					$options['hooks']->dispatch('transport.internal.parse_response', [&$responses[$key], $requests[$key]]);306				}307 308				curl_multi_remove_handle($multihandle, $done['handle']);309				curl_close($done['handle']);310 311				if (!is_string($responses[$key])) {312					$options['hooks']->dispatch('multiple.request.complete', [&$responses[$key], $key]);313				}314 315				$completed++;316			}317		} while ($active || $completed < $subrequestcount);318