HC2020110901/app/Controller/Api/CommonController.php

<?php

declare(strict_types=1);
/**
 * This file is part of Hyperf.
 *
 * @link     https://www.hyperf.io
 * @document https://hyperf.wiki
 * @contact  group@hyperf.io
 * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
 *
 */

namespace App\Controller\Api;

use App\Model\User;
use Hyperf\HttpServer\Annotation\AutoController;

/**
 * Class LotteryController
 * @package App\Controller\Api
 * @AutoController()
 */
class CommonController extends BaseController
{

    public function verifyCode()
    {
        $redis = $this->container->get(\Hyperf\Redis\Redis::class);

        $config = new \EasySwoole\VerifyCode\Conf();
        $code = new \EasySwoole\VerifyCode\VerifyCode($config);

        //重写验证码
        // $img_code = mt_rand(1000,9999);
        // $result = $code->DrawCode($img_code);

        //系统验证码
        $result = $code->DrawCode();
        $img_code = $result->getImageCode();

        //写入缓存 用于其他方法验证 并且设置过期时间
        $redis->set('codes:'.session_id(), $img_code, 180);

        return $result->getImageByte();

    }
}