You are getting that error because you are posting to a GET
route.
I would split your routing for validate
into a separate GET
and POST
routes.
New Routes:
Route::post('validate', 'MemberController@validateCredentials');
Route::get('validate', function () {
return View::make('members/login');
});
Then your controller method could just be
public function validateCredentials()
{
$email = Input::post('email');
$password = Input::post('password');
return "Email: " . $email . " and Password: " . $password;
}