php - 数据库 | PHP |错误？

Question

我想显示每一季的插曲。我在第一次查询时使用了“echo”并显示了“[]”。问题是什么？请帮忙:D

ErrorException in 0405298c171379ebd6bef291f52165f99119355b.php line 47: Object of class Illuminate\Database\Eloquent\Collection could not be converted to int (View: C:\xamppp\htdocs\filmeseriale\resources\views\admin\seriale\show.blade.php) QUERY

    $sezon_episod2 = sezon_serial::select()->where('nume_serial','=',$seriale->id)->get();

   $episoade = Episod::where('id_serial','=',$seriale->id)->where('id_sezon','=',$sezon_episod2)->get();

Html-显示 View

        @foreach($sezon_episod as $sezon)
            <div class="panel-group">
                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h4 class="panel-title">

                            <a data-toggle="collapse" href="#collapse{{ $sezon->numar_sezon }}">Sezon: {{ $sezon->id }}</a>


                        </h4>
                    </div>
                    <div id="collapse{{ $sezon->numar_sezon }}" class="panel-collapse collapse">
                        <ul class="list-group">

                            @if($sezon->id == $sezon_episod2)

                                @foreach($episoade as $episod)

                            <li class="list-group-item">

                                Episodul: {{ $episod->nume_episod }}


                            </li>

                            @endforeach
                                @endif

                        </ul>

                    </div>

                </div>

            </div>
        @endforeach
    </div>

Answer 1

您的第一个查询返回一个集合，然后您像使用整数一样使用这个集合。尝试使用 first() 而不是 get()，这将返回单个 sezon_serial 对象，因此您不应再获取集合。

$sezon_episod2 = sezon_serial::select('id')->where('nume_serial','=',$seriale->id)->first();