If you want to monitor the progress of the download, you may use the filesize()-Function.
But note: The results of said function are cached, so you'll always get 0 bytes. Call clearstatcache() before calling filesize() to determine the actual size of the downloaded file.
This may have performance implications, but if you want to provide the information, there's no way around it.
Above sample extended:
<?php
// get the size of the remote file
$fs = ftp_size($my_connection, "test");
// Initate the download
$ret = ftp_nb_get($my_connection, "test", "README", FTP_BINARY);
while ($ret == FTP_MOREDATA) {
clearstatcache(); // <- this is important
$dld = filesize($locfile);
if ( $dld > 0 ){
// calculate percentage
$i = ($dld/$fs)*100;
printf("\r\t%d%% downloaded", $i);
}
// Continue downloading...
$ret = ftp_nb_continue ($my_connection);
}
if ($ret != FTP_FINISHED) {
echo "There was an error downloading the file...";
exit(1);
}
?>
Philip
ftp_nb_fget
(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
ftp_nb_fget — Retrieves a file from the FTP server and writes it to an open file (non-blocking)
Description
ftp_nb_fget(
FTP\Connection
resource
string
int
int
): int
FTP\Connection
$ftp,resource
$stream,string
$remote_filename,int
$mode = FTP_BINARY,int
$offset = 0): int
ftp_nb_fget() retrieves a remote file from the FTP server.
The difference between this function and ftp_fget() is that this function retrieves the file asynchronously, so your program can perform other operations while the file is being downloaded.
Parameters
-
ftp -
An FTP\Connection instance.
-
stream -
An open file pointer in which we store the data.
-
remote_filename -
The remote file path.
-
mode -
The transfer mode. Must be either
FTP_ASCIIorFTP_BINARY. -
offset -
The position in the remote file to start downloading from.
Return Values
Returns FTP_FAILED or FTP_FINISHED
or FTP_MOREDATA.
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_fget() example
<?php
// open some file for reading
$file = 'index.php';
$fp = fopen($file, 'w');
$ftp = ftp_connect($ftp_server);
$login_result = ftp_login($ftp, $ftp_user_name, $ftp_user_pass);
// Initiate the download
$ret = ftp_nb_fget($ftp, $fp, $file, FTP_BINARY);
while ($ret == FTP_MOREDATA) {
// Do whatever you want
echo ".";
// Continue downloading...
$ret = ftp_nb_continue($ftp);
}
if ($ret != FTP_FINISHED) {
echo "There was an error downloading the file...";
exit(1);
}
// close filepointer
fclose($fp);
?>See Also
- ftp_nb_get() - Retrieves a file from the FTP server and writes it to a local file (non-blocking)
- ftp_nb_continue() - Continues retrieving/sending a file (non-blocking)
- ftp_fget() - Downloads a file from the FTP server and saves to an open file
- ftp_get() - Downloads a file from the FTP server
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User Contributed Notes 1 note
pilif at pilif dot ch ¶
20 years ago
