Vérifiez Laravel First Null
$user = User::where('mobile', Input::get('mobile'))->first(); // model or null
if (!$user) {
// Do stuff if it doesn't exist.
}
Other techniques (not recommended, unnecessary overhead):
$user = User::where('mobile', Input::get('mobile'))->get();
if (!$user->isEmpty()){
$firstUser = $user->first()
}
Excited Elephant