PianoTime/app/Http/Controllers/TestController.php

<?php

namespace App\Http\Controllers;

use App\Models\Student;
use App\Models\StudentCourse;
use App\Services\Admin\AdminUser;
use Carbon\Carbon;
use GuzzleHttp\Client;
use Illuminate\Http\Request;
use Intervention\Image\Facades\Image;

class TestController extends Controller
{
    public function index(Request $request)
    {
        $image = Image::make(url('/upload/images/20180704/7d245ff8c1b077986ebc80d477a9e388.png'))->text('nihao', '12', '14');
    }
}