ftp_put uploads an empty file

Question

I'm trying to upload a file via ftp_put to a windows server.

my code is as follows:

    $date           = date('ymd');
    $file_name      = $date.'.csv';
    $file_location  = 'D:/inetpub/wwwroot/website.com/html/assets/'.$file_name;

//set up basic connection
$conn_id = ftp_connect(FTP_HOST, FTP_PORT);

// login with username and password
$login_result = ftp_login($conn_id, FTP_USER, FTP_PASS);

// check connection
if ((!$conn_id) || (!$login_result)) { 
    echo "FTP connection has failed!"; 
    exit;
}  else { 
    echo "Connected to FTP Server";
}

$upload = ftp_put($conn_id, $file_name, $file_location, FTP_ASCII);

// check upload status
if (!$upload) { 
    echo "FTP upload has failed!"; 
} else { 
    echo "File Uploaded";
}

// close the FTP stream 
ftp_close($conn_id); 

If I upload the file manually using filezilla, it works perfectly. If I use the code above, it creates an empty file.

Answer 1

try using FTP_BINARY instead of FTP_ASCII like this.

$upload = ftp_put($conn_id, $file_name, $file_location, FTP_BINARY);

PHP ftp can be buggy but I have found that it pretty much works in binary transfer mode.

Answer 2

Try transferring the file with passive mode enabled:

Passive Mode

Answer 3

It turns out that UKFast was blocking the connection and transfer. (They also require it to be Active Mode only).

Now they've unblocked it, it's working perfectly. (Before it seemed to just time out)