Fatal error: Uncaught PDOException: SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens in C:\xampp\htdocs\Logintest\Register\register.php:36 Stack trace: #0 C:\xampp\htdocs\Logintest\Register\register.php(36): PDOStatement->execute(Array) #1 {main} thrown in C:\xampp\htdocs\Logintest\Register\register.php on line 36