public function actionGetCheckNum() { $phone = Yii::$app->request->get('phone'); $checkNum = rand(100000, 999999); $session = Yii::$app->session; if (!isset($session['time'])) { $session['time'] = date("Y-m-d H:i:s"); } $session['checkNum'] = $checkNum; //将content的值保存在session中 if (!empty($phone)) { if (Users::isExist($phone)) { $msg = "已存在的电话号码!"; } else { if (strtotime($session['time']) + 60 < time()) { //将获取的缓存时间转换成时间戳加上60秒后与当前时间比较,小于当前时间即为过期 session_destroy(); $session->remove('time'); $msg = '验证码已过期,请重新获取!'; } else { $content = "尊敬的学员,您的注册验证码是" . $checkNum . ",此验证码于一分钟后过期,请尽快完成注册,谢谢!【教练系统】"; $smsModel = Sms::getInstance(Yii::$app->params['smsUserName'], Yii::$app->params['smsPassword']); $result = $smsModel->pushMt($phone, time(), $content, 0); if ($result == '0') { $msg = '验证码已经发送到手机' . $phone . ',请注意查收。'; } else { $msg = "系统错误请联系网站管理员,谢谢"; } } } } else { $msg = '请输入手机号码!'; } return $msg; }