ftp_nb_get

Retrieves a file from the FTP server and writes it to a local file (non-blocking) (PHP 4 >= 4.3.0, PHP 5)
int ftp_nb_get ( resource ftp_stream, string local_file, string remote_file, int mode [, int resumepos] )

ftp_nb_get() retrieves a remote file from the FTP server, and saves it into a local file.

The difference between this function and ftp_get() 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.
local_file: The local file path (will be overwritten if the file already exists).
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 734. ftp_nb_get() example

copy to clipboard

<?php

// Initate the download
$ret = ftp_nb_get($my_connection, "test", "README", FTP_BINARY);

while ($ret == FTP_MOREDATA) {

   

   // Do whatever you want

   echo ".";


   // Continue downloading...

   $ret = ftp_nb_continue($my_connection);

}

if ($ret != FTP_FINISHED) {

   echo "There was an error downloading the file...";

   exit(1);

}
?>

Example 735. Resuming a download with ftp_nb_get()

copy to clipboard

<?php

// Initate 
$ret = ftp_nb_get($my_connection, "test", "README", FTP_BINARY, 

                      filesize("test"));
// OR: $ret = ftp_nb_get($my_connection, "test", "README", 

//                           FTP_BINARY, FTP_AUTORESUME);
while ($ret == FTP_MOREDATA) {

   

   // Do whatever you want

   echo ".";


   // Continue downloading...

   $ret = ftp_nb_continue($my_connection);

}

if ($ret != FTP_FINISHED) {

   echo "There was an error downloading the file...";

   exit(1);

}
?>

Example 736. Resuming a download at position 100 to a new file with ftp_nb_get()

copy to clipboard

<?php

// Disable Autoseek
ftp_set_option($my_connection, FTP_AUTOSEEK, false);

// Initiate
$ret = ftp_nb_get($my_connection, "newfile", "README", FTP_BINARY, 100);

while ($ret == FTP_MOREDATA) {


   /* ... */

   

   // Continue downloading...

   $ret = ftp_nb_continue($my_connection);

}
?>

In the example above, newfile is 100 bytes smaller than README on the FTP server because we started reading at offset 100. If we didn't disable FTP_AUTOSEEK, the first 100 bytes of newfile would be '\0'.

ftp_nb_get

Retrieves a file from the FTP server and writes it to a local file (non-blocking) (PHP 4 >= 4.3.0, PHP 5) int ftp_nb_get ( resource ftp_stream, string local_file, string remote_file, int mode [, int resumepos] )

Parameters

Return Values

Examples

Example 734. ftp_nb_get() example

Example 735. Resuming a download with ftp_nb_get()

Example 736. Resuming a download at position 100 to a new file with ftp_nb_get()

Change Language

Retrieves a file from the FTP server and writes it to a local file (non-blocking) (PHP 4 >= 4.3.0, PHP 5)
int ftp_nb_get ( resource ftp_stream, string local_file, string remote_file, int mode [, int resumepos] )