db; $SQL = "CREATE TABLE users( id INT AUTO_INCREMENT, email VARCHAR(255) NOT NULL, firstname VARCHAR(255) NOT NULL, lastname VARCHAR(255) NOT NULL, status TINYINT NOT NULL, create_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (id) ) Engine=INNODB; "; $db->pdo->exec($SQL); } public function down(){ $db = Application::$app->db; $SQL = "DROP TABLE users"; $db->pdo->exec($SQL); } }