PHP Manual
FTP Functions
Stores a file on the FTP server (non-blocking)

ftp_nb_put

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

ftp_nb_put — Stores a file on the FTP server (non-blocking)

Description

ftp_nb_put(
    FTP\Connection $ftp,
    string $remote_filename,
    string $local_filename,
    int $mode = FTP_BINARY,
    int $offset = 0
): int|false

ftp_nb_put() stores a local file on the FTP server.

The difference between this function and the ftp_put() is that this function uploads the file asynchronously, so your program can perform other operations while the file is being uploaded.

Parameters

ftp: An FTP\Connection instance.
remote_filename: The remote file path.
local_filename: The local file path.
mode: The transfer mode. Must be either FTP_ASCII or FTP_BINARY.
offset: The position in the remote file to start uploading to.

Return Values

Returns FTP_FAILED or FTP_FINISHED or FTP_MOREDATA, or false on failure to open the local file.

Changelog

Version	Description
8.1.0	The `ftp` parameter expects an FTP\Connection instance now; previously, a resource was expected.
7.3.0	The `mode` parameter is now optional. Formerly it has been mandatory.

Examples

Example #1 ftp_nb_put() example

<?php

// Initiate the Upload
$ret = ftp_nb_put($ftp, "test.remote", "test.local", FTP_BINARY);
while ($ret == FTP_MOREDATA) {

// Do whatever you want
echo ".";

// Continue uploading...
$ret = ftp_nb_continue($ftp);
}
if ($ret != FTP_FINISHED) {
echo "There was an error uploading the file...";
exit(1);
}
?>

Example #2 Resuming an upload with ftp_nb_put()

<?php

// Initiate
$ret = ftp_nb_put($ftp, "test.remote", "test.local",
FTP_BINARY, ftp_size("test.remote"));
// OR: $ret = ftp_nb_put($ftp, "test.remote", "test.local",
// FTP_BINARY, FTP_AUTORESUME);

while ($ret == FTP_MOREDATA) {

// Do whatever you want
echo ".";

// Continue uploading...
$ret = ftp_nb_continue($ftp);
}
if ($ret != FTP_FINISHED) {
echo "There was an error uploading the file...";
exit(1);
}
?>