m\modules\v1\controllers\DefaultController::actionSignup PHP Method

    public function actionSignup($step = '1')
    {
        if ($step === '1') {
            $model = new SignupForm();
            if ($model->load(Yii::$app->request->post(), '') && $model->validate()) {
                $model->writeSession();
                if ($sent = $this->_sendMsg($model->mobile)) {
                    Yii::info("用户注册发送短信验证码成功！手机号：{$model->mobile}");
                } else {
                    Yii::warning("用户注册发送短信验证码失败！手机号：{$model->mobile}，说明：" . Yii::$app->smser->message);
                }
                return ['status' => 'success', 'data' => ['isSent' => $sent]];
            } else {
                return ['status' => 'fail', 'data' => ['errors' => $model->getFirstErrors()]];
            }
        } elseif ($step === '2') {
            $session = Yii::$app->session;
            $session->open();
            if (empty($session['mobileSignup']) || empty($session['mobileSignupTimeout']) || $session['mobileSignupTimeout'] < time()) {
                return ['status' => 'fail', 'data' => ['errors' => ['对不起，请您重新注册。']]];
            }
            $model = new SignupMobileVerifyForm();
            if ($model->load(Yii::$app->request->post(), '') && $model->validate()) {
                if ($user = $model->signup()) {
                    $model->clearSession();
                    return ['status' => 'success', 'data' => ['accessToken' => $user->access_token]];
                }
            }
            return ['status' => 'fail', 'data' => ['errors' => $model->getErrors('verifyCode') ?: ['注册失败，请稍后再试。']]];
        } else {
            throw new BadRequestHttpException('参数错误！');
        }
    }