(PHP 4, PHP 5, PHP 7, PHP 8)
ftp_site — Sends a SITE command to the server
   ftp_site() sends the given SITE 
   command to the FTP server.
  
   SITE commands are not standardized, and vary from server
   to server. They are useful for handling such things as file permissions and 
   group membership.
  
ftpAn FTP\Connection instance.
commandThe SITE command. Note that this parameter isn't escaped so there may be some issues with filenames containing spaces and other characters.
   Returns true on success or false on failure.
  
| Version | Description | 
|---|---|
| 8.1.0 | The ftpparameter expects an FTP\Connection
  instance now; previously, a resource was expected. | 
Example #1 Sending a SITE command to an ftp server
<?php
// Connect to FTP server
$ftp = ftp_connect('ftp.example.com');
if (!$ftp) die('Unable to connect to ftp.example.com');
// Login as "user" with password "pass"
if (!ftp_login($ftp, 'user', 'pass')) die('Error logging into ftp.example.com');
// Issue: "SITE CHMOD 0600 /home/user/privatefile" command to ftp server
if (ftp_site($ftp, 'CHMOD 0600 /home/user/privatefile')) {
   echo "Command executed successfully.\n";
} else {
   die('Command failed.');
}
?>