循环N大小的嵌套数组

Question

我有嵌套数组，我需要循环第二级深嵌套数组并进行一些匹配。

循环好友数组并比较reqs_status，其中user_id是登录用户（$ id）。

Json数组如下所示：

[  
   {  
      "id":8,
      "firstname":"Lauren",
      "lastname":"Lambie",
      "email":"lal30@org.uk",
      "role":1,
      "photo":"uploads\/5.jpg",
      "bio":"Surfer, follower of Christ, band member and Swiss design-head.",
      "friends":[  
         {  
            "id":8,
            "user_id":9,
            "friend_id":8,
            "reqs_status":2,
            "created_at":null,
            "updated_at":null
         }
      ]
   },
   {  
      "id":23,
      "firstname":"Jar",
      "lastname":"Morrison",
      "email":"jm93@org.uk",
      "role":1,
      "photo":"uploads\/20.jpg",
      "bio":"Operating at the crossroads of beauty and intellectual purity.",
      "friends":[  
         {  
            "id":21,
            "user_id":22,
            "friend_id":23,
            "reqs_status":2,
            "created_at":null,
            "updated_at":null
         },
         {  
            "id":28,
            "user_id":21,
            "friend_id":23,
            "reqs_status":0,
            "created_at":null,
            "updated_at":null
         }
      ]
   }
]

修改

在我的刀片视图中，我有：

@if ($user['friend'][0]['reqs_status'] == 1)
//do something
@elseif($user['friend'][0]['reqs_status'] == 2)
//do something elseif
@else
//do something else

这里我不知道[0]或[1]，[2]，....是否是正确的数字，因为它是动态的，并且数组的大小不固定。我需要一种循环这个嵌套数组的方法。

所以我试图将其分解为：

@foreach ($users['friends'] as $friend)
@if($friend['reqs_status'] == 1)

@elseif($friend['reqs_status'] == 2)

@else
@endforeach

我在这里得到错误：未定义索引：朋友。所以我在想如何让它变得动态[0]这一部分？或修复我的foreach循环代码和条件？