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ftp_nb_fget
Retrieves a file from the FTP server and writes it to an open file (non-blocking)
(PHP 4 >= 4.3.0, PHP 5)
int ftp_nb_fget ( resource ftp_stream, resource handle, string remote_file, int mode [, int resumepos] )
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_stream
The link identifier of the FTP connection.
- handle
An open file pointer in which we store the data.
- remote_file
The remote file path.
- mode
The transfer mode. Must be either
FTP_ASCIIorFTP_BINARY.- resumepos
Examples
Example 732. ftp_nb_fget() example
<?php
// open some file for reading
$file = 'index.php';
$fp = fopen($file, 'w');
$conn_id = ftp_connect($ftp_server);
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// Initate the download
$ret = ftp_nb_fget($conn_id, $fp, $file, FTP_BINARY);
while ($ret == FTP_MOREDATA) {
// Do whatever you want
echo ".";
// Continue downloading...
$ret = ftp_nb_continue($conn_id);
}
if ($ret != FTP_FINISHED) {
echo "There was an error downloading the file...";
exit(1);
}
// close filepointer
fclose($fp);
?>