In general, this situation. Connecting to a remote ftp. I go to the directory and get a list of all the files. I climb on a lokalka, I receive an array with files which is I Compare them, and which are not loading. But there are files that have been updated, they also need to be downloaded. I do it with the md5_file function. There is no problem getting the local file hash. But the remote server has a problem. How I implement it all.
public function connect($action, $img_name = null) { //подключаемся if (@!$conn_id) { $conn_id = ftp_connect($this->ftp_server); } ftp_login($conn_id, $this->ftp_user_name, $this->ftp_user_pass); switch ($action) { case 'xls': $this->changeDirectory($conn_id, "FE"); $list = $this->getFileCatalog($conn_id); $this->loadXls($conn_id); break; case 'img': if (ftp_pwd($conn_id) !== '/FE/image') { $this->changeDirectory($conn_id, "FE"); $this->changeDirectory($conn_id, "image"); } $list = $this->getFileCatalog($conn_id); $images_list = $this->getListImages(); $for_load = array_diff($list, $images_list); if (count($for_load) > 0) { $this->imageLoad($conn_id, $for_load); } break; } ftp_close($conn_id); } public function changeDirectory($conn_id, $name) { if (ftp_chdir($conn_id, $name)) { echo "Новая текущая директория: " . ftp_pwd($conn_id) . "\n"; } else { echo "Не удалось сменить директорию \n"; } } public function getFileCatalog($conn_id) { $list = ftp_nlist($conn_id, "."); return $list; } public function getListImages() { $dir = '/путь/'; return $files2 = scandir($dir, 1); } public function VerifyKeyFile($conn_id,$inputname, $locImage) { $dir = '/путь/'; if (md5_file($dir . $locImage) == md5_file($_FILES["$inputname"])) { return true; } else { return false; } } public function loadXls($conn_id) { $local_path_file = dirname(__DIR__) . $this->temp . $this->name_local_file; if (ftp_get($conn_id, $local_path_file, $this->server_file, FTP_BINARY)) { echo "Успешно загрузили данные в $this->name_local_file \n"; } else { echo "Проблемы с загрузкой файла \n"; } } public function imageLoad($conn_id, array $img_name) { foreach ($img_name as $img) { $local_path_file = '/путь/' . $img; if (ftp_get($conn_id, $local_path_file, $img, FTP_BINARY)) { echo "Успешно загрузили изображение в $img \n"; } else { echo "Проблемы с загрузкой файла \n"; } } } 
