$pdo = new PDO($dsn,$username,$password);
var_dump($pdo);//The output is object(PDO)#1 (0) { }
//Execute the insert statement
$sql = "update text set age=age 1 where id=5";
$records = $pdo ->exec($sql);
var_dump($records);
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
