问如何在没有用户输入的情况下从浏览器上传php文件

EN

$file = 'c:\downloads\customers.csv';
                $remote_file = 'customers.csv';

                // set up basic connection
                $conn_id = ftp_connect('host.com');

                // login with username and password
                $login_result = ftp_login($conn_id,'user','password');

                // upload a file
                if (ftp_put($conn_id, $remote_file, $file, FTP_ASCII)) {
                 echo "successfully uploaded $file\n";
                } else {
                 echo "There was a problem while uploading $file\n";
                }

                // close the connection
                ftp_close($conn_id);