PDO JSON

example.php

<?php

  $db_name = 'example';
  $hostname = '127.0.0.1';
  $username = 'root';
  $password = 'root';

  try{
    
    $dbh = new PDO("mysql:host=$hostname;dbname=$db_name", $username, $password);

    $sql = 'INSERT INTO user (name, email, age) VALUES (?,?,?)';
    $stmt = $dbh->prepare($sql);

    $name = $_POST['name'];
    $email = $_POST['email'];
    $age = $_POST['age'];

    $stmt->bindParam(1, $name);
    $stmt->bindParam(2, $email);
    $stmt->bindParam(3, $age);

    $stmt->execute();
    $result = $stmt->fetchAll(PDO::FETCH_ASSOC);

    $json = json_encode($result);
    echo $json;
  } catch (Exception $e){
    die($e->getMessage());
  }
 ?>