ftp_nb_get() retrieves remote_file from the FTP server, and saves it to local_file locally. The transfer mode specified must be either FTP_ASCII or FTP_BINARY. The difference between this function and the ftp_get() is that this function retrieves the file asynchronously, so your program can perform other operations while the file is being downloaded.
Returns TRUE on success or FALSE on failure.
<?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);
}
?><?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 ($ret != FTP_FINISHED) {
echo "There was an error downloading the file...";
exit(1);
}
?><?php
// Disable Autoseek
ftp_set_option ($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 have not have disabled FTP_AUTOSEEK, the first 100 bytes of "newfile" will be '\0'.
See also ftp_nb_fget(), ftp_nb_continue(), ftp_get(), and ftp_fget().
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