ssh2_sftp

(PECL ssh2 >= 0.9.0)

ssh2_sftpInitialize SFTP subsystem

Описание

resource ssh2_sftp ( resource $session )

Request the SFTP subsystem from an already connected SSH2 server.

Список параметров

session

An SSH connection link identifier, obtained from a call to ssh2_connect().

Возвращаемые значения

This method returns an SSH2 SFTP resource for use with all other ssh2_sftp_*() methods and the ssh2.sftp:// fopen wrapper.

Примеры

Пример #1 Opening a file via SFTP

<?php
$connection 
ssh2_connect('shell.example.com'22);
ssh2_auth_password($connection'username''password');

$sftp ssh2_sftp($connection);

$stream fopen("ssh2.sftp://$sftp/path/to/file"'r');
?>

Смотрите также

Коментарии

Автор:
Here is an example of how to send a file with SFTP:

<?php

class SFTPConnection
{
    private 
$connection;
    private 
$sftp;

    public function 
__construct($host$port=22)
    {
       
$this->connection = @ssh2_connect($host$port);
        if (! 
$this->connection)
            throw new 
Exception("Could not connect to $host on port $port.");
    }

    public function 
login($username$password)
    {
        if (! @
ssh2_auth_password($this->connection$username$password))
            throw new 
Exception("Could not authenticate with username $username " .
                               
"and password $password.");

       
$this->sftp = @ssh2_sftp($this->connection);
        if (! 
$this->sftp)
            throw new 
Exception("Could not initialize SFTP subsystem.");
    }

    public function 
uploadFile($local_file$remote_file)
    {
       
$sftp $this->sftp;
       
$stream = @fopen("ssh2.sftp://$sftp$remote_file"'w');

        if (! 
$stream)
            throw new 
Exception("Could not open file: $remote_file");

       
$data_to_send = @file_get_contents($local_file);
        if (
$data_to_send === false)
            throw new 
Exception("Could not open local file: $local_file.");

        if (@
fwrite($stream$data_to_send) === false)
            throw new 
Exception("Could not send data from file: $local_file.");

        @
fclose($stream);
    }
}

try
{
   
$sftp = new SFTPConnection("localhost"22);
   
$sftp->login("username""password");
   
$sftp->uploadFile("/tmp/to_be_sent""/tmp/to_be_received");
}
catch (
Exception $e)
{
    echo 
$e->getMessage() . "\n";
}

?>
2006-11-15 17:08:39
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Автор:
The sftp class provided by David Barnes works great.  However, if you get errors about fopen and it failing to open a stream, try the fully qualified path on the remote server.

For example, if you are uploading a file to /Users/username/Sites/file.txt this may not work:

<?php
try {
   
$sftp = new SFTPConnection("localhost"22);
   
$sftp->login("username""password");
   
$sftp->uploadFile("/tmp/to_be_sent""Sites/file.txt");
}
catch (
Exception $e) {
    echo 
$e->getMessage() . "\n";
}
?>

but this will:

<?php
try {
   
$sftp = new SFTPConnection("localhost"22);
   
$sftp->login("username""password");
   
$sftp->uploadFile("/tmp/to_be_sent""/Users/username/Sites/file.txt");
}
catch (
Exception $e) {
    echo 
$e->getMessage() . "\n";
}
?>

Don't assume that since you are connecting as that user that you are starting in its home space.

Another possible option is that you need to use http://us.php.net/manual/en/function.ssh2-sftp-mkdir.php first to make the directory if it does not exist already, and then upload the file into it.
2008-01-28 09:58:55
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
if anyone is interested on how to get a directory listing:
$SSH_CONNECTION= ssh2_connect('shell.example.com', 22);
ssh2_auth_password($SSH_CONNECTION, 'username', 'password');
//------------------------------------------------------------------- 
//this function finds all files within  given directory and returns them
function scanFilesystem($dir) {
    $tempArray = array();
    $handle = opendir($dir);
  // List all the files
    while (false !== ($file = readdir($handle))) {
    if (substr("$file", 0, 1) != "."){
           if(is_dir($file)){
            $tempArray[$file]=scanFilesystem("$dir/$file");
        } else {
            $tempArray[]=$file;
        }
    }
    }
   closedir($handle); 
  return $tempArray;
}

//------------------------------------------------------------------- 
$sftp = ssh2_sftp($SSH_CONNECTION);

//code to get listing of all OUTGOING files
$dir = "ssh2.sftp://$sftp/outgoing";
$outgoing = scanFilesystem($dir);
sort($outgoing);
print_r($outgoing);
2008-04-23 11:38:55
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Автор:
I added some functionality for scanning the filesystem and receiving and deleting files.

class SFTPConnection
{
    private $connection;
    private $sftp;

    public function __construct($host, $port=22)
    {
        $this->connection = @ssh2_connect($host, $port);
        if (! $this->connection)
            throw new Exception("Could not connect to $host on port $port.");
    }

    public function login($username, $password)
    {
        if (! @ssh2_auth_password($this->connection, $username, $password))
            throw new Exception("Could not authenticate with username $username " . "and password $password.");
        $this->sftp = @ssh2_sftp($this->connection);
        if (! $this->sftp)
            throw new Exception("Could not initialize SFTP subsystem.");
    }

    public function uploadFile($local_file, $remote_file)
    {
        $sftp = $this->sftp;
        $stream = @fopen("ssh2.sftp://$sftp$remote_file", 'w');
        if (! $stream)
            throw new Exception("Could not open file: $remote_file");
        $data_to_send = @file_get_contents($local_file);
        if ($data_to_send === false)
            throw new Exception("Could not open local file: $local_file.");
        if (@fwrite($stream, $data_to_send) === false)
            throw new Exception("Could not send data from file: $local_file.");
        @fclose($stream);
    }
   
        function scanFilesystem($remote_file) {
              $sftp = $this->sftp;
            $dir = "ssh2.sftp://$sftp$remote_file"; 
              $tempArray = array();
            $handle = opendir($dir);
          // List all the files
            while (false !== ($file = readdir($handle))) {
            if (substr("$file", 0, 1) != "."){
              if(is_dir($file)){
//                $tempArray[$file] = $this->scanFilesystem("$dir/$file");
               } else {
                 $tempArray[]=$file;
               }
             }
            }
           closedir($handle);
          return $tempArray;
        }   

    public function receiveFile($remote_file, $local_file)
    {
        $sftp = $this->sftp;
        $stream = @fopen("ssh2.sftp://$sftp$remote_file", 'r');
        if (! $stream)
            throw new Exception("Could not open file: $remote_file");
        $contents = fread($stream, filesize("ssh2.sftp://$sftp$remote_file"));           
        file_put_contents ($local_file, $contents);
        @fclose($stream);
    }
       
    public function deleteFile($remote_file){
      $sftp = $this->sftp;
      unlink("ssh2.sftp://$sftp$remote_file");
    }
}
2008-05-14 03:22:35
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Автор:
I changed the read function to:

    public function receiveFile($remote_file, $local_file)
    {
        $sftp = $this->sftp;
        $stream = @fopen("ssh2.sftp://$sftp$remote_file", 'r');
        if (! $stream)
            throw new Exception("Could not open file: $remote_file");
        $size = $this->getFileSize($remote_file);           
        $contents = '';
        $read = 0;
        $len = $size;
        while ($read < $len && ($buf = fread($stream, $len - $read))) {
          $read += strlen($buf);
          $contents .= $buf;
        }       
        file_put_contents ($local_file, $contents);
        @fclose($stream);
    }

    public function getFileSize($file){
      $sftp = $this->sftp;
        return filesize("ssh2.sftp://$sftp$file");
    }
2008-07-08 18:13:03
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
In

$stream = fopen("ssh2.sftp://$sftp/path/to/file", 'r');

please make sure that you are specifying the "absolute" path to a file.

If not, you'll get errors like

"Unable to open file ..."

The reasoning is simple ... ssh2.sftp://$sftp points to the "root" directory on the remote server, where, most likely, one does not have access.

It is necessary to point it to your "home" directory.  For example, "ssh2.sftp://$sftp/home/username/filename" ... where "/home/username" is where your home directory is.
2009-11-16 17:05:51
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Автор:
When uploading (writing) a file you must use an absolute path, not a relative one. 

If, like me, you want to use a relative path, you can use the following code: 

$fh=fopen("ssh2.sftp://$sftp".ssh2_sftp_realpath($sftp,".")."/fileinmyhomedir.txt");
2014-04-04 01:02:22
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Автор:
Note that you must enter the full wrapper URI order for functions that accept those parameters to work properly. For example, this (which is referenced more than once in other comments) does not work:

while (false !== ($file = readdir($handle))) if (is_dir($file)) { /* ... */ }

This does work:

$sc = ssh2_sftp(...);
while (false !== ($file = readdir($handle))) if (is_dir("ssh2.sftp://$sc/$file")) { /* ... */ }

You need to pass the "path" into these functions as an fopen() wrapper URI.
2015-05-25 23:47:37
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
If you wish to store once the protocol + ressource used ("ssh2.sftp://$sftp";)
There's a little trick to know... 
This won't work :

<?php
function connect(){
   
$connection ssh2_connect('shell.example.com'22);
   
ssh2_auth_password($connection'username''password');
   
$sftp ssh2_sftp($connection); 
    return 
"ssh2.sftp://$sftp";
}
$remote connect();
is_file$remote."/path/to/file"); 
// Warning
// Message: is_file(): ## is not a valid SSH2 SFTP resource
?>

You need to have $sftp still avaible at moment the function (is_file, filesize, fopen, ...) uses it
Otherwise, I guess the GC cleans it up and closes the ssh2_stfp connection
That's why this work :

<?php
function connect(){
   
//...
   
global $sftp;
   
$sftp ssh2_sftp($connection); 
    return 
"ssh2.sftp://$sftp";
}
$remote connect();
is_file$remote."/path/to/file");

// Or way better :

class myClass {
    public function 
connect(){
       
//...
       
$this->sftp     ssh2_sftp($connection); 
       
$this->remote   "ssh2.sftp://".$this->sftp;
    }
    public function 
test(){
       
is_file$this->remote."/path/to/file");
    }
}
$obj = new myClass();
$obj->connect();
$obj->test();
?>
2016-02-10 17:15:26
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Here is a modified SFTPConnection class previously posted that returns a recursive directory scanFilesystem method.

<?php
class SFTPConnection
{
    private 
$connection;
    private 
$sftp;

    public function 
__construct($host$port=22)
    {
       
$this->connection = @ssh2_connect($host$port);
        if (! 
$this->connection)
            throw new 
Exception("Could not connect to $host on port $port.");
    }

    public function 
login($username$password)
    {
        if (! @
ssh2_auth_password($this->connection$username$password))
            throw new 
Exception("Could not authenticate with username $username " "and password $password.");
       
$this->sftp = @ssh2_sftp($this->connection);
        if (! 
$this->sftp)
            throw new 
Exception("Could not initialize SFTP subsystem.");
    }

    public function 
uploadFile($local_file$remote_file)
    {
       
$sftp $this->sftp;
       
$stream = @fopen("ssh2.sftp://$sftp$remote_file"'w');
        if (! 
$stream)
            throw new 
Exception("Could not open file: $remote_file");
       
$data_to_send = @file_get_contents($local_file);
        if (
$data_to_send === false)
            throw new 
Exception("Could not open local file: $local_file.");
        if (@
fwrite($stream$data_to_send) === false)
            throw new 
Exception("Could not send data from file: $local_file.");
        @
fclose($stream);
    }

    function 
scanFilesystem($remote_file) {
       
$sftp $this->sftp;
       
$dir "ssh2.sftp://$sftp$remote_file";
       
$tempArray = array();

        if (
is_dir($dir)) {
            if (
$dh opendir($dir)) {
                while ((
$file readdir($dh)) !== false) {
                   
$filetype filetype($dir $file);
                    if(
$filetype == "dir") {
                       
$tmp $this->scanFilesystem($remote_file $file "/");
                        foreach(
$tmp as $t) {
                           
$tempArray[] = $file "/" $t;
                        }
                    } else {
                       
$tempArray[] = $file;
                    }
                }
               
closedir($dh);
            }
        }

        return 
$tempArray;
    }

    public function 
receiveFile($remote_file$local_file)
    {
       
$sftp $this->sftp;
       
$stream = @fopen("ssh2.sftp://$sftp$remote_file"'r');
        if (! 
$stream)
            throw new 
Exception("Could not open file: $remote_file");
       
$contents fread($streamfilesize("ssh2.sftp://$sftp$remote_file"));
       
file_put_contents ($local_file$contents);
        @
fclose($stream);
    }

    public function 
deleteFile($remote_file){
       
$sftp $this->sftp;
       
unlink("ssh2.sftp://$sftp$remote_file");
    }
}
?>
2017-03-22 17:00:15
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Автор:
David's code works wonderfully except for one thing, it wouldn't upload a file until I placed a forward slash after '$sftp'
   
public function uploadFile($local_file, $remote_file)
    {
        $sftp = $this->sftp;
        // Original
        // "ssh2.sftp://$sftp$remote_file"
        $stream = @fopen("ssh2.sftp://$sftp/$remote_file", 'w');

        if (! $stream)
            throw new Exception("Could not open file: $remote_file");

        $data_to_send = @file_get_contents($local_file);
        if ($data_to_send === false)
            throw new Exception("Could not open local file: $local_file.");

        if (@fwrite($stream, $data_to_send) === false)
            throw new Exception("Could not send data from file: $local_file.");

        @fclose($stream);
    }
2017-04-05 16:06:14
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Remember to use stream_set_chunk_size() on the resource for performance reasons, especially if you're uploading large files on links with high latency.

SFTP can only send 32K of data in one packet and libssh2 will wait for a response after each packet sent. So with a default chunk size of 8K the upload will be very slow.
If you set the chunk size to for example 1Mb, libssh2 will send that chunk in multiple packets of 32K and then wait for a response, making the upload much faster.
(see man libssh2_sftp_write for more details)

<?php
$connection 
ssh2_connect('shell.example.com'22);
ssh2_auth_password($connection'username''password');
$sftp ssh2_sftp($connection);
$stream fopen("ssh2.sftp://$sftp/path/to/file"'w');

stream_set_chunk_size($stream1024*1024);
fwrite($stream$data);
?>
2018-03-30 11:29:21
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html
Автор:
Adding a function to previous class to connect with key instead of user/password

<?php
public function loginWithKey($username$publicKey$privateKey$passphrase null)
  {
    if (!@
ssh2_auth_pubkey_file($this->connection$username$publicKey$privateKey$passphrase)) {
      throw new 
Exception("Could not authenticate with given keys or passphrase");
    }

   
$this->sftp = @ssh2_sftp($this->connection);
    if (!
$this->sftp) {
      throw new 
Exception("Could not initialize SFTP subsystem.");
    }
  }

?>
2019-05-23 10:36:43
http://php5.kiev.ua/manual/ru/function.ssh2-sftp.html

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