for ($j=0; $j<$case_cnt; $j++){

while(($data = curl_exec($ch)) === false or $data == '' )

			$defaults = array(
				CURLOPT_URL => "URL",
				CURLOPT_HEADER => 0,
				CURLOPT_RETURNTRANSFER => TRUE,
				CURLOPT_TIMEOUT => 60
			); 	
			$ch = curl_init();
			curl_setopt_array($ch, $defaults);
			set_time_limit(130);
			$date = date('Y-m-d H:i:s');
			file_put_contents(dirname(__FILE__)."/logs/call_API.log", "$date делан запрос: http:\n", FILE_APPEND);			
			$data = curl_exec($ch);
			$date = date('Y-m-d H:i:s');
			file_put_contents(dirname(__FILE__)."/logs/call_API.log", "$date Запрос вернул: \n".$data, FILE_APPEND);			
			while($data === false or $data == '' ){
				set_time_limit(130);
				$date = date('Y-m-d H:i:s');
				file_put_contents(dirname(__FILE__)."/logs/call_API.log", "$date зашли в обработку ошибки или пустого значения\n". $data, FILE_APPEND);
					
					if($data === false){
						set_time_limit(130);
						$date = date('Y-m-d H:i:s');
						file_put_contents(dirname(__FILE__)."/logs/call_API.log", "$date Запрос вернул ошибку: $data \n".curl_error($ch), FILE_APPEND);
				}
				
			
			}

$start = microtime(true);
	set_time_limit(600);
	
	$key = API_KEY;
	$host = TIME_WEB_HOST;
	$user = TIME_WEB_USER;
	$pass = TIME_WEB_PASS;
	$base = TIME_WEB_BASE;
	$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "\n\n $date *****************ПОПЫТКА СКАЧАТЬ ФАЙЛ***************\n Адрес для скачивания https://?key=$key&pdfUrl=$arg \n", FILE_APPEND);	
	$link = new mysqli($host, $user, $pass, $base);
	$sql = "SELECT * FROM files WHERE URL = '$arg'";
	if(!$link->ping){$link = new mysqli($host, $user, $pass, $base);}
	$sql_result = $link->query($sql);
	$nr = $sql_result -> num_rows;//mysqli_num_rows($sql_result);
	if($nr == 0){//Не скачивали этот файл
		$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date Файл не загружался ранее \n", FILE_APPEND );
		$ch = curl_init("https://?key=$key&pdfUrl=$arg");
		$fname = getRandomFileName(dirname(__FILE__)."/", "pdf");
		$tmp = dirname(__FILE__)."/!tmp";
		$fp = fopen($tmp, 'wb');
		curl_setopt($ch, CURLOPT_FILE, $fp);
		curl_setopt($ch, CURLOPT_HEADER, 0);
		curl_setopt($ch, CURLOPT_TIMEOUT, 60); //CURLOPT_TIMEOUT => 60
		do{
			$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date *****************ПОПЫТКА СКАЧАТЬ ФАЙЛ***************\n", FILE_APPEND);	
			set_time_limit(600);
			//sleep(61);
			curl_exec($ch);
			if(curl_errno($ch)){
				$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date curl_errno - ".curl_errno($ch), FILE_APPEND);
				
				//throw new Exception(curl_error($ch));
				
				
				}
			$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);	
			$content_length_download = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
			$curl_info_size_download =  curl_getinfo($ch, CURLINFO_SIZE_DOWNLOAD);
			$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date http_code - $http_code  content_length_download - $content_length_download curl_info_size_download - $curl_info_size_download
			Время выполнения скрипта: ".round(microtime(true) - $start, 4)." сек.\n", FILE_APPEND);	
			}while($http_code!=200);	
		//$info = curl_getinfo($ch);	
		//print_r($info);
		curl_close($ch);
		fclose($fp);
		file_put_contents($fname, file_get_contents($tmp));	
		if(($file_size = filesize($fname))==0){
			unlink($fname);
			}else{
				$sql = "INSERT INTO files
				(URL, download_to)
				VALUES
				('$arg','$fname')";
				if(!$link->ping){$link = new mysqli($host, $user, $pass, $base);}
				$sql_result = $link->query($sql);	
				$file_id = $link->insert_id;

			}
			
		}else{//Есть кэшированные данные			
		$row = $sql_result -> fetch_assoc();
		$fname = $row['download_to'];
		$file_id = $row['pk'];
		$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date Файл загружен из кэша $fname\n", FILE_APPEND );
		}
	

	//$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date http_code - $http_code content_length_download - $content_length_download file_size - $file_size curl_info_size_download $curl_info_size_download, arg - $arg\n", FILE_APPEND );	
	$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date fname - $fname\n", FILE_APPEND );	
	return $file_id;
	$date = date('Y-m-d H:i:s'); file_put_contents(dirname(__FILE__)."/logs/curl_info.log", "$date file_id - $file_id\n", FILE_APPEND );	
}

function getRandomFileName($path, $extension='')
    {
        $extension = $extension ? '.' . $extension : '';
        do {
            $name = substr(md5(microtime() . rand(0, 9999)), 0, 20);			
            $file = $path . $name . $extension;		
        } while (file_exists($file));
        return $file;
    }