使用PHP脚本在远程主机上获取目录大小

$ftp_server = "ftp.example.com";
$ftp_username = "your_username";
$ftp_password = "your_password";

$conn_id = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");

if (@ftp_login($conn_id, $ftp_username, $ftp_password)) {
    echo "Connected to $ftp_server\n";
    $size = ftp_size($conn_id, "/path/to/directory");
    echo "Directory size: $size bytes\n";
} else {
    echo "Login failed\n";
}

ftp_close($conn_id);

$host = "ssh.example.com";
$username = "your_username";
$password = "your_password";

$connection = ssh2_connect($host);
ssh2_auth_password($connection, $username, $password);

$stream = ssh2_exec($connection, "du -s /path/to/directory");
$output = stream_get_contents($stream);

list($size, $directory) = explode("\t", trim($output));
echo "Directory size: $size bytes\n";