Php 列值等于给定值的计数数组

我有一个控制器，其中一组复选框值被传递给控制器，然后被发送到控制器上执行各种任务。我的问题集中在获取阵列的发货客户的计费方法的计数上，但我不完全确定如何获取这些值，因为我正在发布一个阵列，我需要一个计数

这是我的控制器：

public function sendNow(Request $request)
    {
        $now = Carbon::now();
        $sendNowShipment = array();
        $method = array();
        $sendNowShipment = request('send');
            foreach($sendNowShipment as $SNS){
                $shipment = Shipment::findOrFail($SNS);
                if($shipment->billtoAccount->billingMethods->label == "Mail"){
                $timestamp = Carbon::now()->timestamp;
                $shipment_details = $shipment->shipment_details;
                    $path = 'temp/freightbill_'.$shipment->pro_number.'-'.$timestamp.'.pdf';
                    $sessionPath[] = $path;
                    $pdf = PDF::loadView('shipments.pdf', compact('shipment', 'shipment_details'))
                        ->save($path);
                }elseif($shipment->billtoAccount->billingMethods->label == "Email"){
                    $billToAccount =   $shipment->billtoAccount;
                    $billToAccountUsers = $billToAccount->users;
                        if ($billToAccount->primary_email){
                            $billToEmail[] = $billToAccount->primary_email;
                        }
                        if ($billToAccountUsers->count() > 0){
                            foreach ($billToAccountUsers as $billToAccountUser){
                                $billToEmail[] = $billToAccountUser->email;
                            }
                        }
                        foreach ($billToEmail as $bte){
                            Mail::to($bte)->send(new newBillToShipment($shipment));
                        }
                }
            }

        if(count($shipment->billtoAccount->billingMethods->label == "Mail") > 0){// count where shipments->customers->billingMethods = Mail) > 0
            $pdf = new PDFMerger();

            // Add 2 PDFs to the final PDF
            foreach($sessionPath as $sp){
            $pdf->addPDF($sp, 'all');
            }

            // Merge the files and retrieve its PDF binary content
            $timestamp = Carbon::now()->timestamp;
            $binaryContent = $pdf->merge('download', $timestamp."-printBatch.pdf");

            // Return binary content as response
            //return response($binaryContent)
              //  ->header('Content-type' , 'application/pdf');
            return back();
            //dd($sendNowShipment,$sendMethod);
    }
    }

如果你看这条线（中间稍过一点）：

你会看到，我正在经历一系列的关系，只是为了得到我所寻找的“邮件”的价值

---

因此，我想知道这是否应该是通过laravel的DB:：查询，但我不确定如何使用已发布到该控制器的给定复选框数组执行查询。

在我的头顶，而不是将它们全部计算在内，您只需抓取第一个匹配的：

$shipping->billtoAccount->billingMethods->where（'label'、'='、'Mail'）->first（）

在找到复选框值时返回true。这是我在检查复选框值时倾向使用的方法。可能有更快/更优化的方法，但如果有，我不知道。

if(count($shipment->billtoAccount->billingMethods->label == "Mail") > 0){
// count where shipments->customers->billingMethods = Mail) > 0