new FTP function

Will Fitch, sorry i didn't know that i contacted one of the dev to post it
on behalf of me and he said its ok to post here, i'll post it there right
away

Paul Dragoonis, there is 3 ways to do it in userland codes.

Public function dir_exists($dir)
{
    if (!$this->conn_id)
        return false;

    $currentDir = ftp_pwd($this->conn_id);

    if ( ftp_chdir($this->conn_id, $dir) )
    {
        ftp_chdir($this->conn_id, $currentDir);
        return true;
    }

    return false;
}

this function above attempts to change directory it see if its exists or
not. and produce E_WARNING if the dir doesn't exists

and there is

echo ( is_dir("ftp://{$username}:{$password}@{$server}{$dir}";) ) ? true :
false;

which require that you re-authenticate

Public function dir_exists2($dir)
{
    if ( !$this->conn_id )
        return false;

    $orginal = $dir;

    if ( substr($dir, -1) === '/' )
        $dir = substr($dir, 0, strlen($dir)-1);

    $dir    = substr($dir, 0, strlen($dir)-strlen(strrchr($dir,'/')));

    $res  = ftp_nlist($this->conn_id, '-dF '. $dir);

    if ( isset($res) AND is_array($res) )
    {
        foreach ($res as $key => $value)
        {
            if ($value === $orginal)
                return true;
        }
    }
    return false;
}

this function i hacked my self to stop the E_WARNING from flooding my error
log files. it works but kinda ugly and so hackish, and i dont think it will
work nicely if there is too many directories.

I don't believe there's a feature of the FTP protocol to check if a
file/folder exists.

Can you please provide a PHP userland solution to this, so that a
corresponding C implementation could be added.

I believe the way to go about it is list the CWD contents and check if
that exists and is of type DIR. You must also make sure that if a file
exists with the name of the directory you want to check it has to handle
that properly, it can't simply return true or false. If false then that
means you could create it because it doesn't exist. If true it means you
can CD into it and put stuff there, which is also not true.

Thanks,
Paul.

Hi

II would like to see "ftp_dir_exists()" function in PHP, right now its
kinda unreasonable to expect people to use hacks such as "is_dir()" and
having to re-authenticate just to check if the dir exists, I also dont
think its good idea to use "ftp_chdir()" just to check if the directory
exists, because its shows errors if the directory doesn't exists. i
think
there should be a way to check if the directory exists without having to
resort to hackish ways, or having to authenticate again.

There are procedures in place for this. If you'd like to make a feature
request, use bugs.php.net and submit the request with the FTP extension
selected. You can also use https://wiki.php.net/rfc if you really want
to see/make the change as well.