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ftp_get (PHP 3 >= 3.0.13, PHP 4, PHP 5) ftp_get -- Загружает файл с FTP сервера Описаниеbool ftp_get ( resource ftp_stream, string local_file, string remote_file, int mode [, int resumepos] )
ftp_get() загружает файл удалённый файл с FTP сервера и
сохраняет его в локальный файл.
Список параметров
ftp_stream
Идентификатор соединения с FTP сервером
local_file
Путь к локальному файлу (файл будет перезаписан, если уже существует).
remote_file
Путь к удалённому файлу.
mode
Режим передачи. Должен быть либо FTP_ASCII, либо
FTP_BINARY.
resumepos
Возвращаемые значения
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
Примеры
Пример 1. Пример использования ftp_get() |
<?php
$local_file = 'local.zip';
$server_file = 'server.zip';
$conn_id = ftp_connect($ftp_server);
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
if (ftp_get($conn_id, $local_file, $server_file, FTP_BINARY)) {
echo "Произведена запись в $local_file\n";
} else {
echo "Не удалось завершить операцию\n";
}
ftp_close($conn_id);
?>
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anomie at users dot sf dot net
30-Jan-2007 07:24
Crud. The _nb_ only refers to reading from the ftp server, and the buffer in the socket pair is only about 364 bytes. So it doesn't work for files larger than that size.
anomie at users dot sf dot net
25-Jan-2007 09:50
Why there isn't an "ftp_get_contents" function, I don't know. It takes a little work to emulate one, but it's doable.
<?php
function ftp_get_contents($ftp_stream, $remote_file, $mode, $resume_pos=null){
$pipes=stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM, STREAM_IPPROTO_IP);
if($pipes===false) return false;
if(!stream_set_blocking($pipes[1], 0)){
fclose($pipes[0]); fclose($pipes[1]);
return false;
}
$fail=false;
$data='';
if(is_null($resume_pos)){
$ret=ftp_nb_fget($ftp_stream, $pipes[0], $remote_file, $mode);
} else {
$ret=ftp_nb_fget($ftp_stream, $pipes[0], $remote_file, $mode, $resume_pos);
}
while($ret==FTP_MOREDATA){
while(!$fail && !feof($pipes[1])){
$r=fread($pipes[1], 8192);
if($r==='') break;
if($r===false){ $fail=true; break; }
$data.=$r;
}
$ret=ftp_nb_continue($ftp_stream);
}
while(!$fail && !feof($pipes[1])){
$r=fread($pipes[1], 8192);
if($r==='') break;
if($r===false){ $fail=true; break; }
$data.=$r;
}
fclose($pipes[0]); fclose($pipes[1]);
if($fail || $ret!=FTP_FINISHED) return false;
return $data;
}
?>
Something similar would work to write a ftp_put_contents function, too.
administrator at gesoft dot org
12-Aug-2006 03:05
Hello everybody,
If someone will try to download files to the same local file (some temporary file), like shown here:
<?php
foreach ($files as $key=>$path) {
...
$result = ftp_get($ftpConnId, 'temp.tmp', $path, FTP_BINARY);
...
}
?>
please take in consideration the fact that you will have big problems with downloading (getting) hole files. In other words ‘temp.tmp’ file always will have the same size equal to first downloaded file despite the real size of downloading file. I have not idea what is the reason!
If someone will think that problem is just in getting proper file size (which you will get using filssize() function) he will be mistaken. The download file’s size is not equal to source file’s size materially, that means fflush() function will not solve the problem (I have tried this as well).
Finally the solution was founded: before downloading a file you will need to delete local file if such exist (‘temp.tmp’). So working code will look like:
<?php
foreach ($files as $key=>$path) {
...
if (file_exists('temp.tmp')) {
unlink('temp.tmp');
}
$result = ftp_get($ftpConnId, 'temp.tmp', $path, FTP_BINARY);
...
}
?>
Good luck in scripting :-)
Vitali Simsive
corey-holzer at nyc dot rr dot com
23-Jan-2004 06:20
The zero size file is not a side effect. When the ftp_get starts the first thing it does is to create the inode/file which it will stream the data too and that is a zero size file with the nname you specified for the local file. When the download fails it leaves the file in place.
thivierr at telus dot net
22-Nov-2003 02:25
If you previously downloaded a file before (like a huge web log), and just want to get the remaining portion, do this:
$local_file_size = filesize($local_file_path);
$get_result = ftp_get($conn_id, $local_file_path, $remote_file_path, FTP_BINARY, $local_file_size);
This same code works regardless of wether the local file exists already or not. You should first test to make sure the local file is not bigger than the remote file.
ramiro at qusarcr dot com
06-Nov-2002 07:36
Keep in mind that ftp_get will overwrite the file on your local machine if it has the same name.
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