How to upload local file on the FTP/SFTP server - PHP

function.php

// connect and login to FTP server
$ftp_server = "ftp.domain.com";
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");
//$ftp_conn = ftp_ssl_connect($ftp_server);// for SSL-FTP connection instead of ftp_connect
$login = ftp_login($ftp_conn, $ftp_username, $ftp_userpass);

$file = "local-file.jpg";

// upload file
if (ftp_put($ftp_conn, "server-file.jpg", $file, FTP_ASCII)) {
	echo "Successfully uploaded $file.";
} else {
	echo "Error uploading $file.";
}

// close connection
ftp_close($ftp_conn);