我的控制器有問題并在其中獲取數據。我的問題是，當我像這樣讓我的團隊時：$team = Team::where('join_number', '=', $data['team'])->get();我似乎無法通過去訪問它$team->join_request_needed = 'True'例如？如果我只是死轉儲$team->join_request_needed我收到“此集合實例上不存在屬性 [join_request_needed]”。我如何訪問這些數據？如果我死了轉儲$team，我會得到這個；所以它得到數據？Illuminate\Database\Eloquent\Collection {#282 ▼  #items: array:1 [▼    0 => App\Team {#291 ▼      #guarded: []      #connection: "sqlite"      #table: "teams"      #primaryKey: "id"      #keyType: "int"      +incrementing: true      #with: []      #withCount: []      #perPage: 15      +exists: true      +wasRecentlyCreated: false      #attributes: array:8 [?]      #original: array:8 [▼        "id" => "1"        "user_id" => "1"        "name" => "team1"        "description" => null        "join_request_needed" => "0"        "join_number" => "1574832472024"        "created_at" => "2019-11-27 05:27:52"        "updated_at" => "2019-11-27 22:46:55"      ]      #changes: []      #casts: []      #dates: []      #dateFormat: null      #appends: []      #dispatchesEvents: []      #observables: []      #relations: []      #touches: []      +timestamps: true      #hidden: []      #visible: []      #fillable: []    }  ]}這是我的整個功能（到目前為止只是粗略，因為我堅持獲取數據）：public function check() {    $data = request()->validate([        'email' => ['required', 'email'],        'team' => ['required', 'alpha_num', 'exists:teams,join_number']    ]);