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(PHP 4, PHP 5)

ftp_sizeGibt die Größe der angegebenen Datei zurück


int ftp_size ( resource $ftp_stream , string $remote_file )

ftp_size() gibt die Größe der angegebenen Datei in Bytes zurück.


Nicht alle Server unterstützen dieses Feature.



Der Verbindungshandler der FTP-Verbindung.


Die entfernte Datei.


Gibt bei Erfolg die Dateigröße zurück, sonst -1.


Beispiel #1 ftp_size() example



// Verbindung aufbauen
$conn_id ftp_connect($ftp_server);

// Login mit Benutzername und Passwort
$login_result ftp_login($conn_id$ftp_user_name$ftp_user_pass);

// Ermitteln der Größe von $file
$res ftp_size($conn_id$file);

if (
$res != -1) {
"$file ist $res Bytes groß";
} else {
"Größe konnte nicht bestimmt werden";

// Verbindung schließen


Siehe auch

  • ftp_rawlist() - Gibt eine detaillierte Liste der Dateien in einem angegebenen Verzeichnis zurück

9 BenutzerBeiträge:
- Beiträge aktualisieren...
bluerain [at] telenet [dot] be
10.07.2009 10:41
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:

=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));
fwrite($socket, "QUIT\r\n");
miccots at gmail dot com
30.10.2007 10:55
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).
22.07.2007 0:42
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.
chuck at t8design dot com
23.05.2006 18:54
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.
21.06.2005 23:30
Well this function is nice but if you have files larger then 2.1Gb or 2.1 Billion Bytes you cannot get its size.

29.09.2004 3:10
To get a dirsize recursive you can use this simple function:

<?php # copyright by fackelkind | codeMaster
function getRecDirSize ($connection, $dir){
$temp = ftp_rawlist ($connection, "-alR $dir");
        foreach (
$temp as $file){
            if (
ereg ("([-d][rwxst-]+).* ([0-9]) ([a-zA-Z0-9]+).* ([a-zA-Z0-9]+).* ([0-9]*) ([a-zA-Z]+[0-9: ]*[0-9]) ([0-9]{2}:[0-9]{2}) (.+)", $file, $regs)){ 
$isdir = (substr ($regs[1],0,1) == "d");
                if (!
$size += $regs[5];
$dirSize = getRecDirSize ($conID, "/");
project_t4 at hotmail dot com
18.03.2004 20:03
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, $item) == "0")
      echo "<br>Directory:: ".$item;
      } else {
      echo "<br>File:: ".$item;

This outputs a list of the remote directory and indicates which items are directories and which are files.
nicke_ at at_h9k dot com
4.10.2003 3:48
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.
victor59 at yahoo dot com dot hk
23.12.2002 10:44
$file= 'filename with space.txt';
$size = ftp_size($this->ftp, urldecode($file) );

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

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