(PHP 4 >= 4.0.3, PHP 5, PHP 7, PHP 8)
ftp_exec — Requests execution of a command on the FTP server
   Sends a SITE EXEC command request to the FTP
   server. 
  
   Returns true if the command was successful (server sent response code:
   200); otherwise returns false.
  
| Version | Description | 
|---|---|
| 8.1.0 | The ftpparameter expects an FTP\Connection
  instance now; previously, a resource was expected. | 
Example #1 ftp_exec() example
<?php
// variable initialization
$command = 'ls -al >files.txt';
// set up basic connection
$ftp = ftp_connect($ftp_server);
// login with username and password
$login_result = ftp_login($ftp, $ftp_user_name, $ftp_user_pass);
// execute command
if (ftp_exec($ftp, $command)) {
    echo "$command executed successfully\n";
} else {
    echo "could not execute $command\n";
}
// close the connection
ftp_close($ftp);
?>