msy-prod/app/Http/Controllers/QrCodeController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class QrCodeController extends Controller
{


    // 生成二维码
    public function index(Request $request)
    {
        $size = $request->get('size', 430);
        $margin = $request->get('margin', 2);
        $url = $request->get('url');
        list($c1, $c2, $c3) = explode(',', $request->get('color', '0,0,0'));
        list($b1, $b2, $b3) = explode(',', $request->get('bcolor', '255,255,255'));
        $logo = "https://www.fenpeiduixiang.com/favicon.ico";
        $result = \QrCode::format('png')
            ->size($size)
            ->margin($margin)
            ->merge($logo, 0.2, true)
            ->color($c1, $c2, $c3)
            ->backgroundColor($b1, $b2, $b3)
            ->errorCorrection('H')
            ->generate($url);
        return response($result, 200, ['Content-Type' => 'image/png']);
    }
}