返回响应（） - > Laravel中的Json和Arrays

Question

我有一个控制器，我想返回一个有多个数组的JSON响应。首先，我将介绍我的控制器：

<?php

public function notificationEmails(Request $request)
{
    $shipment = Shipment::findOrFail($request->shipmentID);
    $billToAccount =   $shipment->billtoAccount;
    $billToAccountUsers = $billToAccount->users;

    foreach ($billToAccountUsers as $billToAccountUser){
        $billToEmail = $billToAccountUser->email;
    }                   

    $shipToAccount =   $shipment->shiptoAccount;
    $shipToAccountUsers = $shipToAccount->users;

    foreach ($shipToAccountUsers as $shipToAccountUser){
        $shipToEmail = $shipToAccountUser->email;
    }

    $shipFromAccount =   $shipment->shipfromAccount;
    $shipFromAccountUsers = $shipFromAccount->users;     

    foreach ($shipFromAccountUsers as $shipFromAccountUser){
        $shipFromEmail = $shipFromAccountUser->email;
    }

    return response()->json([
                    'details' => $shipment,
                    'billersEmails' => $billToEmail
                ]);
}

这是一个例子，但是此时如果我只是dd（$ billToEmail），我将获得我请求的所有数据（所有这些都是电子邮件）的多行返回，但是当我返回JSON特定的返回“billersEmails “，我只收到其中一封电子邮件。

我知道必须有多个电子邮件被退回，但到目前为止我还没有找到适当的响应。

Answer 1

您必须使用数组，因为您有多个记录，否则它将覆盖现有值。更改您的代码如下：

<?php

public function notificationEmails(Request $request)
{
    $shipment = Shipment::findOrFail($request->shipmentID);
    $billToAccount =   $shipment->billtoAccount;
    $billToAccountUsers = $billToAccount->users;
    $billToEmail = array();
    $shipToEmail = array();
    $shipFromEmail = array();
    foreach ($billToAccountUsers as $billToAccountUser){
        $billToEmail[] = $billToAccountUser->email;
    }                   

    $shipToAccount =   $shipment->shiptoAccount;
    $shipToAccountUsers = $shipToAccount->users;

    foreach ($shipToAccountUsers as $shipToAccountUser){
        $shipToEmail[] = $shipToAccountUser->email;
    }

    $shipFromAccount =   $shipment->shipfromAccount;
    $shipFromAccountUsers = $shipFromAccount->users;     

    foreach ($shipFromAccountUsers as $shipFromAccountUser){
        $shipFromEmail[] = $shipFromAccountUser->email;
    }

    return response()->json([
                    'details' => $shipment,
                    'billersEmails' => $billToEmail
                ]);
}