ftp_pwd

<?php

// 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);

// change directory to public_html
ftp_chdir($ftp, 'public_html');

// print current directory
echo ftp_pwd($ftp); // /public_html

// close the connection
ftp_close($ftp);
?>