how to prevent user to add duplicate card in stripe using laravel

1$stripe = new StripeClient('STRIPE_SECRET_KEY');
2
3$cards = $stripe->paymentMethods->all(['customer' => 'CUSTOMER_ID', 'type' => 'card']);
4
5$fingerprints = [];
6
7foreach ($cards as $card) {
8   $fingerprint = $card['card']['fingerprint'];
9
10    if (in_array($fingerprint, $fingerprints, true)) {
11      $stripe->paymentMethods->detach($card['id']);
12   } else {
13     $fingerprints[] = $fingerprint;
14   }
15}

1public function checkBankingDetailsAlert()
2  {
3    $user = Auth::user();
4    $stripe = new \Stripe\StripeClient(env('STRIPE_SECRET'));
5    $cards = $stripe->paymentMethods->all(['customer' => $user->stripe_customer_id, 'type' => 'card']);
6    $fingerprints = [];
7    foreach ($cards as $card) {
8       $fingerprint = $card['card']['fingerprint'];
9        if (in_array($fingerprint, $fingerprints, true)) {
10          $stripe->paymentMethods->detach($card['id']);
11       } else {
12         $fingerprints[] = $fingerprint;
13       }
14    }
15    return response()->json([
16      'status' => 'Success',
17      'fingerprint' => $fingerprints,
18    ]);
19  }
20