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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_ASCII or FTP_BINARY.

resumepos

Return Values

Returns FTP_FAILED or FTP_FINISHED or FTP_MOREDATA.

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);
?>