limit number of click counts per IP every 24 hrs

here is my code for counting user clicks on banner ad, i want to limit the number of click counts only 1 acceptable for user per 1 IP once every 24 hours.? public function adClicked($pub,$hash) { $ad = Advertise::where('hashid', $hash)->first(); if(isset($ad)) { $an['user_id'] = $ad->user_id; $an['publisher_id'] = $pub; $an['type'] = 2; Analytic::create($an); if($ad->click==1) { $user = User::find($ad->user_id); if($user->click > 0) { $user['click'] = $user->click - 1; $user->save(); } else { $ad['status'] = 0; $ad->update(); } $publisher = Publisher::find($pub); if(isset($publisher)) { $gnl = General::first(); $publisher['balance'] = $publisher->balance + $gnl->click; $publisher->update(); } } $ad['count_click'] = $ad->count_click + 1; $ad->update(); return redirect($ad->link); } else { return redirect(url('/')); } }