如何使用FTP连接到Azure scale set实例

是的,可以在php中使用FTP:

//open a connection
$conn = ftp_connect($host);

//login to server
ftp_login($conn, $user, $pass);

//upload file
if (ftp_put($conn, $remoteFile, $localFile, FTP_ASCII)) {
    return "<p>successfully uploaded $localFile to $remoteFile</p>";
} else {
    return "<p>There was a problem while uploading $remoteFile</p>";
}

有关更多FTP功能,请参阅手册 http://php.net/manual/en/book.ftp.php