query("SHOW TABLES LIKE 'engineers'"); if ($stmt->rowCount() == 0) { $pdo->exec(" CREATE TABLE engineers ( id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255) NOT NULL, phone VARCHAR(255) NULL, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ) "); echo "Table 'engineers' created successfully." . PHP_EOL; } else { echo "Table 'engineers' already exists." . PHP_EOL; } } catch (PDOException $e) { die("DB ERROR: " . $e->getMessage()); }