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FTP-Funktionen

<<ftp_get_option

ftp_login>>

ftp_get

(PHP 4, PHP 5)

ftp_getLädt eine Datei von einem FTP-Server herunter

Beschreibung

bool ftp_get ( resource $ftp_stream , string $local_file , string $remote_file , int $mode [, int $resumepos = 0 ] )

ftp_get() lädt eine entfernte Datei vom FTP-Server und speichert sie in eine lokale Datei.

Parameter-Liste

ftp_stream

Der Verbindungshandler der FTP-Verbindung.

local_file

Der lokale Dateipfad (wird überschrieben, falls die Datei schon existiert).

remote_file

Der Pfad zur Datei auf dem Server.

mode

Der Transfer-Modus. Muss entweder FTP_ASCII oder FTP_BINARY sein.

resumepos

Die Position in der entfernten Datei, ab der der Download beginnen soll.

Rückgabewerte

Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben.

Beispiele

Beispiel #1 ftp_get()-Beispiel

<?php

// Variablen definieren
$local_file 'local.zip';
$server_file 'server.zip';

// 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);

// Versuche $server_file herunterzuladen und in $local_file zu speichern
if (ftp_get($conn_id$local_file$server_fileFTP_BINARY)) {
    echo 
"$local_file wurde erfolgreich geschrieben\n";
} else {
    echo 
"Ein Fehler ist aufgetreten\n";
}

// Verbindung schließen
ftp_close($conn_id);

?>

Changelog

Version Beschreibung
4.3.0 resumepos wurde hinzugefügt.

Siehe auch

  • ftp_pasv() - Schaltet den passiven Modus ein oder aus
  • ftp_fget() - Lädt eine Datei vom FTP-Server und speichert sie in eine geöffnete Datei
  • ftp_nb_get() - Überträgt eine Datei von dem FTP-Server und speichert sie lokal (nicht blockierend)
  • ftp_nb_fget() - Lädt eine Datei vom FTP-Server und schreibt sie in eine lokale Datei (nicht-blockierend)


12 BenutzerBeiträge:
- Beiträge aktualisieren...
danny at ingeniarte dot com
26.11.2010 0:37
Remember to use the full server paths to the directories you are working on. Server paths are not the same as "ftp paths".

I was using the path displayed on my FTP client to download and upload files and I kept getting "Not found" or "Permission Denied" errors.
CuDi
23.10.2009 4:50
I tried to ftp a 7mb file today off my webserver.

I copied this example directly and it told me.

Port command successful
"there was a problem"

I thought it was because of the size.
But I guessed it might be cause of my firewall.

So I made the ftp connection passive:

<?PHP
 
 
...
 
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
 
ftp_pasv($conn_id, true);

?>

Ran the script again & it worked fine.

Hope this helps someone
mroerick at gmx dot net
15.05.2009 21:42
ftp_sync is a way to walk the directory structure on the server and copy every directory and file to the same location locally.

<?php
$ftp_server
= "ftp.example.com";
$conn_id = ftp_connect ($ftp_server)
    or die(
"Couldn't connect to $ftp_server");
   
$login_result = ftp_login($conn_id, "user", "pass");
if ((!
$conn_id) || (!$login_result))
    die(
"FTP Connection Failed");

ftp_sync ("DirectoryToCopy");    // Use "." if you are in the current directory

ftp_close($conn_id); 

// ftp_sync - Copy directory and file structure
function ftp_sync ($dir) {

    global
$conn_id;

    if (
$dir != ".") {
        if (
ftp_chdir($conn_id, $dir) == false) {
            echo (
"Change Dir Failed: $dir<BR>\r\n");
            return;
        }
        if (!(
is_dir($dir)))
           
mkdir($dir);
       
chdir ($dir);
    }

   
$contents = ftp_nlist($conn_id, ".");
    foreach (
$contents as $file) {
   
        if (
$file == '.' || $file == '..')
            continue;
       
        if (@
ftp_chdir($conn_id, $file)) {
           
ftp_chdir ($conn_id, "..");
           
ftp_sync ($file);
        }
        else
           
ftp_get($conn_id, $file, $file, FTP_BINARY);
    }
       
   
ftp_chdir ($conn_id, "..");
   
chdir ("..");

}
?>
w dot danford at electronics-software dot com
10.11.2008 23:06
A subtle issue with the ftp_get() function. The second param, string $local_file, is a file name on the SERVER running the php script. It is NOT a file on the client machine running the browser. I erroneously tried to use this ftp to download a file from my site to my local system. I entered the full path starting with the drive letter ("h:/...") on a system running WIN XP and kept getting a failure of unable to open (destination) file. Only after just putting in a file name with no pathing did I see where the file was written. It was in the directory on my site where the php script is located (hosting is managed shared LAMP server which supports multiple url's, GoDaddy hosting).
Nate from ruggfamily.com
22.10.2008 23:12
Here's a quick function that figures out the correct mode to use based on a file's extension.

<?php
function get_ftp_mode($file)
{   
   
$path_parts = pathinfo($file);
   
    if (!isset(
$path_parts['extension'])) return FTP_BINARY;
    switch (
strtolower($path_parts['extension'])) {
        case
'am':case 'asp':case 'bat':case 'c':case 'cfm':case 'cgi':case 'conf':
        case
'cpp':case 'css':case 'dhtml':case 'diz':case 'h':case 'hpp':case 'htm':
        case
'html':case 'in':case 'inc':case 'js':case 'm4':case 'mak':case 'nfs':
        case
'nsi':case 'pas':case 'patch':case 'php':case 'php3':case 'php4':case 'php5':
        case
'phtml':case 'pl':case 'po':case 'py':case 'qmail':case 'sh':case 'shtml':
        case
'sql':case 'tcl':case 'tpl':case 'txt':case 'vbs':case 'xml':case 'xrc':
            return
FTP_ASCII;
    }
    return
FTP_BINARY;
}

// sample usage
ftp_get($conn_id, $local_file, $server_file, get_ftp_mode($server_file));
?>
Aditya P dot Bhatt (adityabhai at gmail dot com)
25.03.2008 12:40
<?php
               
// define some variables
       
$folder_path = "YOUR FOLDER PATH";
       
$local_file = "LOCAL FILE PATH";
       
$server_file = "SERVER FILE PATH";
       
       
//-- Connection Settings
       
$ftp_server = "IP ADDRESS"; // Address of FTP server.
       
$ftp_user_name = "USERNAME"; // Username
       
$ftp_user_pass = "PASSWORD"; // Password
        #$destination_file = "FILEPATH";
       
        // set up basic connection
       
$conn_id = ftp_connect($ftp_server);
       
       
// login with username and password
       
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
       
       
// try to download $server_file and save to $local_file
       
if (ftp_get($conn_id, $local_file, $server_file, FTP_BINARY)) {
            echo
"Successfully written to $local_file\n";
        } else {
            echo
"There was a problem\n";
        }
       
       
// close the connection
       
ftp_close($conn_id);
?>
anomie at users dot sf dot net
30.01.2007 16:24
Crud. The _nb_ only refers to reading from the ftp server, and the buffer in the socket pair is only about 364 bytes. So it doesn't work for files larger than that size.
anomie at users dot sf dot net
25.01.2007 18:50
Why there isn't an "ftp_get_contents" function, I don't know. It takes a little work to emulate one, but it's doable.
<?php
function ftp_get_contents($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
13.08.2006 0:05
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
23.01.2004 15:20
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
22.11.2003 23:25
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
6.11.2002 16:36
Keep in mind that ftp_get will overwrite the file on your local machine if it has the same name.



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