Размер файла ftp php

Содержание

ftp_size
Список параметров
Возвращаемые значения
Список изменений
Примеры
Смотрите также
User Contributed Notes 11 notes
ftp_size
Список параметров
Возвращаемые значения
Список изменений
Примеры
Смотрите также
User Contributed Notes 11 notes

ftp_size

ftp_size() возвращает размер заданного файла в байтах.

Замечание:

Не все FTP-серверы поддерживают эту возможность.

Список параметров

Возвращаемые значения

Возвращает размер файла или -1 при возникновении ошибки.

Список изменений

Примеры

Пример #1 Пример использования ftp_size()

// установка соединения
$ftp = ftp_connect ( $ftp_server );

// проверка имени пользователя и пароля
$login_result = ftp_login ( $ftp , $ftp_user_name , $ftp_user_pass );

// получение размера файла $file
$res = ftp_size ( $ftp , $file );

if ( $res != — 1 ) echo «Размер файла $file : $res байт» ;
> else echo «Не удалось определить размер файла $file » ;
>

// закрытие соединения
ftp_close ( $ftp );

Смотрите также

User Contributed Notes 11 notes

To overcome the 2 GB limitation, the ftp_raw solution below is probably the nicest. You can also perform this command using regular FTP commands:

$response = ftp_raw ( $ftpConnection , «SIZE $filename » );
$filesize = floatval ( str_replace ( ‘213 ‘ , » , $response [ 0 ]));
?>

[However, this] is insufficient for use on directories. As per RFC 3659 (http://tools.ietf.org/html/rfc3659#section-4.2), servers should return error 550 (File not found) if the command is issued on something else than a file, or if some other error occurred. For example, Filezilla indeed returns this string when using the ftp_raw command on a directory:

array(1) <
[0]=>
string(18) «550 File not found»
>

RFC 959 (http://tools.ietf.org/html/rfc959) dictates that the returned string always consists of exactly 3 digits, followed by 1 space, followed by some text. (Multi-line text is allowed, but I am ignoring that.) So it is probably better to split the string with substr, or even a regular expression.

$response = ftp_raw ( $ftp , «SIZE $filename » );
$responseCode = substr ( $response [ 0 ], 0 , 3 );
$responseMessage = substr ( $response [ 0 ], 4 );
?>

Or with a regular expression:

$response = ftp_raw ( $ftp , «SIZE $filename » );
if ( preg_match ( «/^(\\d) (.*)$/» , $response [ 0 ], $matches ) == 0 )
throw new Exception ( «Unable to parse FTP reply: » . $response [ 0 ]);
list( $response , $responseCode , $responseMessage ) = $matches ;
?>

You could then decide to assume that response code ‘550’ means that it’s a directory. I guess that’s just as ‘dangerous’ as assuming that ftp_size -1 means that it’s a directory.

note that project_t4 at hotmail dot com’s example above doesn’t work in general, though it works on his Win2K/Apache server; as far as I can tell there is no way to check over ftp whether a directory exists. This function’s behavior given a directory name seems to be at least somewhat dependent on your OS, web server, or ftp server, I don’t know which.

Just to let people out there know, on my windows 2000 server running Apache and php i was returned 0 not -1 for directories.

foreach ($dir_list as $item)
if(ftp_size($conn_id, $item) == «0»)
echo «
Directory:: «.$item;
> else echo «
File:: «.$item;
>
>

This outputs a list of the remote directory and indicates which items are directories and which are files.

If you experience troubles with size of large file then you can use ftp_rawlist function and parse it result

Well this function is nice but if you have files larger then 2.1Gb or 2.1 Billion Bytes you cannot get its size.

To get a dirsize recursive you can use this simple function:

function getRecDirSize ( $connection , $dir ) $temp = ftp_rawlist ( $connection , «-alR $dir » );
foreach ( $temp as $file ) if ( ereg ( «([-d][rwxst-]+).* (5) ([a-zA-Z0-9]+).* ([a-zA-Z0-9]+).* (7*) ([a-zA-Z]+[0-9: ]*6) (2:7) (.+)» , $file , $regs )) <
$isdir = ( substr ( $regs [ 1 ], 0 , 1 ) == «d» );
if (! $isdir )
$size += $regs [ 5 ];
>
>
return $size ;
>
$dirSize = getRecDirSize ( $conID , «/» );
?>

This will return the filesize on remote host and the size if you download it in FTP_BINARY mode. If you are using FTP_ASCII in ftp_get() the size can be changed.

$file= ‘filename with space.txt’;
$size = ftp_size($this->ftp, urldecode($file) );

this one can correctly return the size
otherwize, it always return -1

2 adams[AT]techweavers[DOT]net:
To get a size of large file (f. ex.: 3.2 Gb) you have to format the result returned by ftp_size():

$size = sprintf («%u», ftp_size($connection, $file_name));

So you can get the real size of big files. But this method is not good for checking is this a dir (when ftp_size() returns -1).

For checking if a certain folder exists try using ftp_nlist() function to get a directory list in array. By using in_array(‘foldername’) you can find out if it is there or not.

To overcome the 2GB file size limit, you can open your own socket to get the file size of a large file. Quick and dirty script:

$socket = fsockopen ( $hostName , 21 );
$t = fgets ( $socket , 128 );
fwrite ( $socket , «USER $myLogin \r\n» );
$t = fgets ( $socket , 128 );
fwrite ( $socket , «PASS $myPass \r\n» );
$t = fgets ( $socket , 128 );
fwrite ( $socket , «SIZE $fileName \r\n» );
$t = fgets ( $socket , 128 );
$fileSize = floatval ( str_replace ( «213 » , «» , $t ));
echo $fileSize ;
fwrite ( $socket , «QUIT\r\n» );
fclose ( $socket );
?>

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