未定义偏移量：14（查看：C:\Users\mycomputer\project\resources\views\livewire\chat\chat.blade.php）

Question

我收到以下错误

未定义偏移量：14（查看：C:\Users\mycomputer\project\resources\views\livewire\chat\chat.blade.php）

我的 $nextval undefined offset:14 我找不到解决这个问题的方法，我取的数据最多只有 13 但错误在偏移量 14。当数据达到 13 时我无法停止

来源 Controller

public function render()
{
    $usid = Auth::user()->id;
    $this->usid = $usid;
    $chats = Chats::orderBy('created_at', 'ASC')->where(['from' => $usid, 'to' => $this->toid])->orWhere(['to' => $usid, 'from' => $this->toid])->get()->toArray();
    // dd($chats);
    $sub = Chats::orderBy('created_at', 'DESC');
    $chat_list = Chats::whereIn('id', function($query) {
        $query->from('chats')->groupBy('from')->selectRaw('MAX(id)');
     })->with(['chat_user','chat_employer'])->where('to', $usid)->orderBy('created_at', 'DESC')->get();
    // dd($chat_list);

    if(Auth::user() != null){
        $singlechat = Chats::where(['from' => $usid, 'to' => $this->toid])->orWhere(['to' => $usid, 'from' => $this->toid])->get();
        // dd($singlechat);
    }
    $this->singlechat = $singlechat;
    // $this->chats = $chats;

    return view('livewire.chat.chat',[
        'singlechat' =>$singlechat,
        'chats' => $chats,
        'chat_lists' => $chat_list,
    ]);
}

源视图

 @php $chatkeys = array_keys($chats); $i=1; @endphp
            @foreach(array_keys($chatkeys) as $chat)
                @if(Auth::user()->id == $chats[$chatkeys[$chat]]['from'])
                    <div class="chat-message">
                        <div class="flex items-end justify-end">
                            @php
                                $this_value = $chats[$chatkeys[$chat]];
                                if($i < count($chatkeys)){
                                    $nextval = $chats[$chatkeys[$chat]+1];
                                }else{
                                    $nextval = ['type' => null];
                                }
                                $i++;
                            @endphp
                            @if($nextval['type'] == $this_value['type'])
                            <div class="flex flex-col space-y-2 text-xs max-w-xs mx-2 order-1 items-end pr-6">
                                <div><span class="px-4 py-2 rounded-lg inline-block bg-blue-600 text-white whitespace-pre-line">{!! $this_value['desc'] !!}</span></div>
                            </div>
                            @else
                            <div class="flex flex-col space-y-2 text-xs max-w-xs mx-2 order-1 items-end">
                                <div><span class="px-4 py-2 rounded-lg inline-block rounded-br-none bg-blue-600 text-white whitespace-pre-line">{!! $this_value['desc'] !!}</span></div>
                            </div>
                            <img src="https://images.unsplash.com/photo-1549078642-b2ba4bda0cdb?ixlib=rb-1.2.1&amp;ixid=eyJhcHBfaWQiOjEyMDd9&amp;auto=format&amp;fit=facearea&amp;facepad=3&amp;w=144&amp;h=144" alt="My profile" class="w-6 h-6 rounded-full order-1">
                            @endif
                        </div>
                    </div>
                @elseif(Auth::user()->id == $chats[$chatkeys[$chat]]['to'])
                    <div class="chat-message">
                        <div class="flex items-end">
                            @php
                                $this_value = $chats[$chatkeys[$chat]];
                                if($i < count($chatkeys)){
                                    $nextval = $chats[$chatkeys[$chat]+1];
                                }else{
                                    $nextval = ['type' => null];
                                }
                                $i++;
                            @endphp
                            @if($nextval['type'] == $this_value['type'])
                            <div class="flex flex-col space-y-2 text-xs max-w-xs mx-2 order-2 items-start pl-6">
                                <div><span class="px-4 py-2 rounded-lg inline-block bg-gray-300 text-gray-600 whitespace-pre-line">{!! $this_value['desc'] !!}</span></div>
                            </div>
                            @else
                            <div class="flex flex-col space-y-2 text-xs max-w-xs mx-2 order-2 items-start">
                                <div><span class="px-4 py-2 rounded-lg inline-block rounded-bl-none bg-gray-300 text-gray-600 whitespace-pre-line">{!! $this_value['desc'] !!}</span></div>
                            </div>
                            <img src="https://images.unsplash.com/photo-1549078642-b2ba4bda0cdb?ixlib=rb-1.2.1&amp;ixid=eyJhcHBfaWQiOjEyMDd9&amp;auto=format&amp;fit=facearea&amp;facepad=3&amp;w=144&amp;h=144" alt="My profile" class="w-6 h-6 rounded-full order-1">
                            @endif
                        </div>
                    </div>
                @endif
            @endforeach