Web Development

Fatal error: Uncaught Error: Call to a member function prepare() on null in C:\xampp\htdocs\gco\core\classes\user.php:16 Stack trace: #0 C:\xampp\htdocs\gco\includes\login.php(15): User->login('rahul@yahoo.com', 'password') #1 C:\xampp\htdocs\gco\index.php(66): include('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\gco\core\classes\user.php on line 16

public function login($email,$password){
    $stmt = $this->pdo->prepare("SELECT 'user_id' FROM 'users' WHERE 'email'=:email AND 'password'=:password");
    $stmt->bindParam(":email",$email,PDO::PARAM_STR);
    $stmt->bindParam(":password",md5($password),PDO::PARAM_STR);
    $stmt->execute();

public ActionResult DemoTreeView()
{
    return View();
}

A principal object represents the security context of the user on whose behalf the code is running, including that user's identity (IIdentity) and any roles to which they belong.

<script src="scripts/*.js"> </script>

[HttpGet]
public Response<List<OperatorEntity>> GetAllChangedOperators(string instrumentName)
{
    return GetBL().GetAllChangedOperators(instrumentName);
}