我正在使用PHP中的mvc结构,我想检索最后插入的行ID。
我创建了以下sql代码:
$sql = "INSERT INTO song (artist, track, link) VALUES (:artist, :track, :link)"; $query = $this->db->prepare($sql); $query->execute(array(':artist' => $artist, ':track' => $track, ':link' => $link)); echo $query->lastInsertId(); // To retrieve last inserted row ID.
但不幸的是我遇到了这个错误: Fatal error: Call to undefined method PDOStatement::lastInsertId()
Fatal error: Call to undefined method PDOStatement::lastInsertId()
我也尝试过此堆栈链接,但不适用于我,因此如果您能帮助我获取ID,我将非常高兴。
我也在这里共享我的controller.php文件。
/** * This is the "base controller class". All other "real" controllers extend this class. */ class Controller{ /** * @var null Database Connection */ public $db = null; /** * Whenever a controller is created, open a database connection too. The idea behind is to have ONE connection * that can be used by multiple models (there are frameworks that open one connection per model). */ function __construct(){ $this->openDatabaseConnection(); } /** * Open the database connection with the credentials from application/config/config.php */ private function openDatabaseConnection(){ // set the (optional) options of the PDO connection. in this case, we set the fetch mode to // "objects", which means all results will be objects, like this: $result->user_name ! // For example, fetch mode FETCH_ASSOC would return results like this: $result["user_name] ! // @see http://www.php.net/manual/en/pdostatement.fetch.php $options = array(PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_OBJ, PDO::ATTR_ERRMODE => PDO::ERRMODE_WARNING); // generate a database connection, using the PDO connector // @see http://net.tutsplus.com/tutorials/php/why-you-should-be-using-phps-pdo-for-database-access/ $this->db = new PDO(DB_TYPE . ':host=' . DB_HOST . ';dbname=' . DB_NAME, DB_USER, DB_PASS, $options); } /** * Load the model with the given name. * loadModel("SongModel") would include models/songmodel.php and create the object in the controller, like this: * $songs_model = $this->loadModel('SongsModel'); * Note that the model class name is written in "CamelCase", the model's filename is the same in lowercase letters * @param string $model_name The name of the model * @return object model */ public function loadModel($model_name){ require 'application/models/' . strtolower($model_name) . '.php'; // return new model (and pass the database connection to the model) return new $model_name($this->db); } }
你快到了。
如果您查看lastInsertId的手册页,则会在数据库句柄上调用它- 您当前正在语句中对其进行调用。
您只需要致电:
$this->db->lastInsertId();