laravel check model column was changed
class UserObserver
{
/**
* Listen to the User created event.
*
* @param \App\User $user
* @return void
*/
public function updating(User $user)
{
if($user->isDirty('email')){
// email has changed
$new_email = $user->email;
$old_email = $user->getOriginal('email');
}
}
}