thinkphp 短信注册

<div class="controls">
   <input type="text" id="phone" name="phone" placeholder="请输入你的手机号" class="input-xfat input-xlarge">
   <span class="error"></span>
</div>

//定义一个方法生成验证码

public function sendcode($phone)
{
//定义一个随机的四位数
    $check = rand(1000,9999);
//存储验证码
    cache('code',$check);
    echo $check;
    $statusStr = array(
        "0" => "短信发送成功",
        "-1" => "参数不全",
        "-2" => "服务器空间不支持,请确认支持curl或者fsocket，联系您的空间商解决或者更换空间！",
        "30" => "密码错误",
        "40" => "账号不存在",
        "41" => "余额不足",
        "42" => "帐户已过期",
        "43" => "IP地址限制",
        "50" => "内容含有敏感词"
    );
    $smsapi = "http://api.smsbao.com/";
    $user = "suiyuqi"; //短信平台帐号
    $pass = md5("syq112233"); //短信平台密码
    $content="$check";//要发送的短信内容
    $phone = "$phone";//要发送短信的手机号码
    $sendurl = $smsapi."sms?u=".$user."&p=".$pass."&m=".$phone."&c=".urlencode($content);
    $result =file_get_contents($sendurl) ;
    echo $statusStr[$result];
}

public function doregister()
{
    $user = request()->post();
    $yzm = cache('code');
    if ($user['code'] == $yzm){
        unset($user['code'],$user['repassword']);
        $addRes = Db::name('user')->insert($user);
        if ($addRes){
            return '注册成功';
        }else{
            return '注册失败';
        }

    }else{
        return '验证码错误';
    }



}

<script>
   $('#dyMobileButton').click(function (){
      var phone = $('#phone').val();

      $.ajax({
         url:'sendcode',
         type:'get',
         data:{
            phone:phone
         },
         success:function (res){

         }
      })

   })
</script>