如何在Laravel中傳遞數據以進行查看

Question

我在控制器中寫了一個函數

class GPromoCode extends Controller {
    public function generatePromoCode() {
        $length = 8;
        $characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $string = '';    
        $prefix ='KM';
        for ($p = 0; $p < $length ; $p++) {
            $string .= $characters[mt_rand(0, strlen($characters)- 1)];
        }
        return $prefix.$string;
    }
}

在視圖刀片模板中，如何通過$ coupon將字符串傳遞到文本框，例如：{{$ coupon}}

提前致謝！

Answer 1

您應該嘗試這樣：

public function generatePromoCode()
        {
        $length = 8;
        $characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $string = '';    
        $prefix ='KM';
            for ($p = 0; $p < $length ; $p++) {
                $string .= $characters[mt_rand(0, strlen($characters)- 1)];
                }
        $coupon = $prefix.''.$string;

        return View('coupon',compact('coupon')); 
        }


<input type="text" value = "{{$coupon}}">

Answer 2

class GPromoCode extends Controller
{
    //generate promote code
    public function generatePromoCode()
    {
    $length = 8;
    $characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $string = '';    
    $prefix ='KM';
        for ($p = 0; $p < $length ; $p++) {
            $string .= $characters[mt_rand(0, strlen($characters)- 1)];
            }
          $data = $prefix.$string;
         return View('your_view_page_name',compact('data')); 
    }

}

<input type="text" value = "{{$data}}">

Answer 3

您可以像這樣通過控制器從視圖文件中傳遞數據：

public function generatePromoCode() {
        $length = 8;
        $characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $string = '';    
        $prefix ='KM';
        for ($p = 0; $p < $length ; $p++) {
            $string .= $characters[mt_rand(0, strlen($characters)- 1)];
        }
        return view('view_file_name',['string'=>$string,'prefix'=>$prefix]);
    }

而且，您可以像這樣簡單地在視圖文件中同時獲得兩個變量：

{{$prefix}}
{{$string}}