PHP ftp_nb_fput() Function

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Open local file, and upload it (non-blocking) to a file on the FTP server:

// connect and login to FTP server
$ftp_server = "";
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");
$login = ftp_login($ftp_conn, $ftp_username, $ftp_userpass);

$server_file = "serverfile.txt";

// open local file
$local_file = "localfile.txt";
$fp = fopen($local_file,"r");

// initiate upload
$d = ftp_nb_fput($ftp_conn, $server_file, $fp, FTP_BINARY)

while ($d == FTP_MOREDATA)
  // do whatever you want
  // continue uploading
  $d = ftp_nb_continue($ftp_conn);

if ($d != FTP_FINISHED)
  echo "Error uploading $local_file";

// close connection

Definition and Usage

The ftp_nb_fput() function uploads an open local file to the FTP server (non-blocking).

Tip: This function (as opposite to ftp_fput()) retrieves the file asynchronously, so you can perform other operations while the file is being downloaded.   



Parameter Description
ftp_connection Required. Specifies the FTP connection to use
remote_file Required. Specifies the file path to upload to
open_file Required. Specifies a pointer to the open local file
mode Required. Specifies the transfer mode. Possible values: FTP_ASCII or FTP_BINARY
startpos Optional. Specifies the position in the remote file to start uploading to

Technical Details

Return Value: This function returns one of the following values:
  • FTP_FAILED (send/receive failed)
  • FTP_FINISHED (send/receive completed)
  • FTP_MOREDATA (send/receive in progress)
PHP Version: 4.3+

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