use TeamTNT\TNTSearch\TNTSearch;

    $tnt = new TNTSearch;

    $tnt->loadConfig([
        'driver'    => 'mysql',
        'host'      => 'localhost',
        'database'  => 'dbname',
        'username'  => 'user',
        'password'  => 'pass',
        'storage'   => '/var/www/tntsearch/examples/'
    ]);

    $indexer = $tnt->createIndex('name.index');
    $indexer->query('SELECT id, article FROM articles;');
    //$indexer->setLanguage('german');
    $indexer->run();