我試圖獲取日期和課程名稱的值，但我收到了這些錯誤異常。環形：array:2 [▼ 0 => Collection {#284 ▼#items: array:3 [▼ 0 => {#277 ▼ +"date": "2018" } 1 => {#279 ?} 4 => {#282 ?}`` ] } 1 => Collection {#283 ▼ #items: array:2 [▼ 0 => {#280 ▼ +"id": 1 +"courseName": "newc1" } 1 => {#271 ?} ] } ] //tried these @foreach ($result as $key=> $value) @foreach ($value as $val) {{$val->date}} @endforeach @endforeach //controller $data = array(); $date = db::table('students')->select('date')->get()->unique(); $course = db::table('courses')->select('id', 'courseName')->get(); array_push($data, $date, $course);需要遍歷這些。而是得到了 ErrorException (E_ERROR) 未定義的屬性：stdClass::$date
2 回答
慕娘9325324
TA貢獻1783條經驗 獲得超4個贊
你必須控制數據庫結果，如果它在日期選擇上也可以為 laravel 使用 distinct() 和 get 必須在它之前的最后
//This
$date = db::table('students')->select('date')->get()->unique();
//To This
$date = db::table('students')->select('date')->distinct()->get();
if(!$date)
return $this->response;
//or
return false;
//更新
$course = DB::table('students')
->select('id','courseName', 'courses')
->groupBy('courses')//What ever you want to uniqe
->get();
對于返回視圖示例，您必須自己更改
return $this->responseWithView("index //PAGE","success", ['courses' => $course,'anything' => $youwant]);
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