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I'm in the process of building an web app that will, besides other things, need to connect to a FTP server to download or upload files. The application is written in PHP and it's hosted on a Linux server.

What I was wondering is whether or not it would be possible to also provide support for SFTP servers, but after some quick searches on Google it seems that this is not all that simple.

So, the question is: What would be the best way to use SFTP from within PHP? Is there a class that could also provide support for FTP as well as SFTP so that same functions could be used for both?



Yes, you can do that with cURL. To switch from FTP to SFTP all you have to do is to change protocol option form CURLPROTO_FTP to CURLPROTO_SFTP.

cURL supports following protocols: HTTP, HTTPS , FTP, FTPS, SCP, SFTP, TELNET, LDAP, LDAPS, DICT, FILE, TFTP.

BTW. SFTP is not to be confused with FTPS. SFTP is SSH File Transfer Protocol, while FTPS is FTP over SSL.

Monday, September 12, 2022

There is runkit, but you may find it simpler to just call the script over the command line (Use shell_exec), if you don't need any interaction between the master and child processes.

Monday, October 24, 2022

Try this, it seems to work ok here but I have only tested it on one server:

$curl = curl_init();
curl_setopt($curl, CURLOPT_URL,"ftp://server/file");

curl_setopt($curl, CURLOPT_USERPWD, "user:pass");
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_NOBODY, 1);

curl_setopt($curl, CURLOPT_FILETIME, TRUE );

$result = curl_exec ($curl);
$time = curl_getinfo($curl, CURLINFO_FILETIME);
print date('d/m/y H:i:s', $time);

curl_close ($curl);
Monday, November 7, 2022

is_dir works only on the local file-system. If you want to check if a ftp-directory already exists try this:

function ftp_is_dir($ftp, $dir)
    $pushd = ftp_pwd($ftp);

    if ($pushd !== false && @ftp_chdir($ftp, $dir))
        ftp_chdir($ftp, $pushd);   
        return true;

    return false;

if($id != '') {
    if(ftp_is_dir($conn_id, "../public_html".$tem_pasta['path']."/pics/".$id)) {
    // and so on...
Saturday, December 3, 2022

You can simply write a call to the sftp command line client via a batch file if you want to accomplish that.

Check out the Shell() function in VBA.

Under the click event of the button on your form add in the code:

mySFTPCall = "sftp <insert your options here!>"
Call Shell(mySFTPCall, 1)

I've used this before to just copy files straight across network shares etc. to share data from an in-house Access DB. Of course you could get more fancy if necessary.

Sunday, September 4, 2022
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