Send Files via FTP Using PHP

Sending files to a server via FTP is an essential ability of any web developer or designer. Of course, we all use glossy FTP clients like WS_FTP and FireFTP, but what about FTP automation? You can use PHP to FTP files from one server to another. Let me show you how.

The PHP

$connection = ftp_connect($server);

$login = ftp_login($connection, $ftp_user_name, $ftp_user_pass);

if (!$connection || !$login) { die('Connection attempt failed!'); }

$upload = ftp_put($connection, $dest, $source, $mode);

if (!$upload) { echo 'FTP upload failed!'; }

ftp_close($connection); 

Obviously, the first task is to connect to the other server. Once the connection is created, you pass the login credentials. Once you're logged in, you can use the ftp_put() function to send the file. That's it!

What would you use this for? Well, you could set up a cron to create a database backup and send it to an offsite server.


Comments

  1. Alex

    hey!, you forgot to put the source code !!!

    • mahadeva parsad

      hay i tried to connect to server using ftp from my local system but it coud’t connect to server.my code is correct but it not work please suggest me how to connect with how to pass parameters in details.I hope u help me…………….

  2. david

    @Alex: It’s there.

  3. Alex

    great script !!!!
    Thanks!!!!

  4. Loïc Hoguin

    What about using the FTP wrappers instead? The resulting code should be shorter and more intuitive. You could do the following directly and be done with it:

    $upload = copy($source, ‘ftp://user:password@host/path/file‘);
    if (!$upload) { echo ‘FTP upload failed!’; }

  5. Mark Sanborn

    Cool :)

  6. Jacob Molin

    $upload = copy($source,
    ‘ftp://user:password@host/path/file’);
    if (!$upload) { echo ‘FTP upload
    failed!’; }

    I think the way David Walsh do it is more secure.

    I don’t know but i think so ;)

  7. Loïc Hoguin

    I’d say they’re both as insecure. The work done behind the scenes for this particular snippet is the same. If you needed better control (e.g. chmod), however, you would have to use the ftp extension. But most of the time it’s not needed.

  8. Antoine Leclair

    Yay, I didn’t even know there was FTP functions in PHP.

    Could be useful to backup stuff… if it was more secure. Also, I think the script run time is limited (to 30 seconds in my case) on lots of hosts.

  9. Michael

    The 30 seconds time-limit can in most cases be changed using
    set_time_limit(x);.

    If changed, it allows an execution time longer (or shorter…) than the default 30 secs.

  10. Jacob Molin

    Yay, I didn’t even know there was FTP
    functions in PHP.

    Could be useful to backup stuff… if it
    was more secure. Also, I think the
    script run time is limited (to 30
    seconds in my case) on lots of hosts.

    Yes for MySQL BackUp i also use it together with a timer.

    But if i want to make a backup of other files on my ftp server i prefer cobian backup!
    Cobian
    In the start it was a professional programmer who made the program up to version 7 i think. Then he didn’t have time for it, and he published as opensource.
    Many other has then made the program up to version 9!

  11. ilyas TEKER

    great job =)

  12. Mike

    And if you want to see progress ?

  13. Trink

    You can’t really see progress using PHP, that’d be more along the lines of Java or Perl. Well, truthfully, if you mess around with output buffering and the ftp nonblocking upload options, you can use ftp_nb_fput() or ftp_nb_put() along with ob_implicit_flush() to send out data via a while loop that updates the page. This can also be done via AJAX, if you flush your output buffer before uploading the file. At that point you can use an XMLHttpRequest to periodically (maybe every second) check on the file’s progress via another PHP file. I personally use Perl alongside the AJAX option though. If you do any of that though, watch out because you cannot force a header at that point, it all has to be done in the output. So it’d require multiple flushes of the output buffer.

  14. Diego

    I get two problems:

    the script run time is limited
    I can’t see progress

    I would like to use this way to upload big files, rather than “post” way.

    EDIT: to solve the run time troubble, you should write “set_time_limit(0)” at the begin of the script (I don’t know if this could be insecure)

  15. Abhinav joshi

    Cool :)

  16. Pakistan

    Got more ideas, but can we restrict user to send only .doc file

  17. trink

    Yes.
    Before $upload = ftp_put($connection, $dest, $source, $mode); put this:
    if(substr($dest,-4) != ‘.doc’) die(“You may only upload .doc files.”);
    Obviously the die() can be replaced with your own error handler, just ensure that it halts the script, or just put the rest in an else block.

  18. arius

    i did as you said but then i found this “Warning: ftp_put() [function.ftp-put]: Opening data channel for file transfer. in *“. can you explain why ?

  19. Disha Vaghela

    Hey David…its really helpful ! thnx a lot !!!

  20. blackbird

    @david: explain me below code and which are needed to replace with actual value.

    $upload = ftp_put($connection, $dest, $source, $mode);

    eg: $dest=..
    $source=..
    $mode=…

  21. Sohbet

    Thanks forever web pages..

  22. tushar

    cool script
    q :-
    i want to get email id from any page if exist?
    how i do it ?
    help me

  23. Sohbet odalari

    i want to get email id from any page if exist?
    how i do it ?

  24. kelebek

    Nice article and insight. Good to have bumped onto your blog and met you.

  25. Trobury

    goood insight what is want to get mail as attactment

  26. murthy

    GOOOOD one i like it

  27. vinoth

    thank you guys!!!!!!!!!!

    i got error on this code. :(

    after spending little time, i got the solution.

    ftp_pasv($connection, true); // to turns on the passive mode

    works!

  28. neo

    this snippet saved my pain in uploading files remotely. im planning to make a central network for photos uploaded using a script on my “main” server.

  29. aCidcOde

    Nice, ty for this code, i can’t remember how i get that.

  30. Zhuge

    The code is incomplete, at best, if the code included a few comments, or if it was written in full, alot of counfusion could be avoided…

  31. Ujjawal

    can u give me complete source code of uploading bigger files like 50-100 mb’s ??

    • Retrobot

      I would also love to know this, any ideas?

  32. Pramod Rawat

    This Code is not working please tell me the procedure how it will work.
    Thanks in advance.

  33. Rajeev Singh Paweria

    great script, I was looking for a similar one for one of my project. Thanks David.

  34. tarim

    Hi,

    I tried many times, But, I failed. I do not know why. I always receive Warning: ftp_put(): Could not create file. message. Anyone have any idea?

    Thanks

  35. vadiraj

    hey anybody will this code run irrespective of the system…what should be program running at client side….


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