密码错误三次限制登录

HTML页面的代码：

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<center>
    <table>
        <tr>
            <td>用户名</td>
            <td><input type="text" class="name"></td>
            <td><span class="sp1"></span></td>
        </tr>
        <tr>
            <td>密码</td>
            <td><input type="password" class="pwd"></td>
        </tr>
        <tr>
            <td></td>
            <td><input type="submit" value="登录" class="sub"></td>
        </tr>
    </table>
</center>
<script src="__STATIC__/jquery.min.js"></script>
<script>
    //判断用户
    $(".name").blur(function () {
        var name=$(".name").val();
        //请求
        $.post(
            "{:url('index/user_pan')}",
            {
                name:name
            },
            function (data) {
                if(data==1)
                {
                    $(".sp1").empty();
                    $(".sp1").append("该用户不存在")
                }else{
                    $(".sp1").empty();
                    $(".sp1").append("√")
                }
            }
        )
    })
    $(".sub").click(function () {
        var name=$(".name").val();
        var pwd=$(".pwd").val();
        //请求
        $.post(
            "{:url('index/login_do')}",
            {
                name:name,
                pwd:pwd
            },
            function (data) {
                 if(data==1)
                 {
                     alert("密码错误");
                 }else if(data==2)
                 {
                     alert("45秒后登录")
                 }else if(data==3)
                 {
                     alert("着啥急，还没到45秒后呢！")
                 }else if(data==4)
                 {
                     alert("登录成功")
                 }
            }
        )
    })
</script>
</body>
</html>

PHP页面的代码：

//登录
public function login()
{
    return view("login");
}
//判断用户
public function user_pan()
{
    $name=Request::instance()->param("name");
    $a=Db::table("user")->where("name='$name'")->find();
    Session::set("b_id",$a['b_id']);
    if(!$a){  return 1;  }//判断用户
}
//登录的值
public function login_do()
{
    $b_id=Session::get("b_id");
    $stat=Db::table("user")->where("b_id=$b_id")->find();
    $static=$stat['static'];
    if($static==1)
    {
        Session::set("add_time",time(),'think');
        $now_time=$stat['now_date'];
        $add_time=Session::get("add_time",'think');
        $time_aa=$add_time-$now_time;
        if($time_aa<=45)
        {
            return 3;
        }else{
            Db::table("user")->where("b_id='$b_id'")->update(['sum'=>0,'sta tic'=>0]);
        }
    }

    $zong_shu=Db::table("user")->where("b_id='$b_id'")->find();
    $shu=$zong_shu['sum'];
    if($shu>=2)
    {
        Db::table("user")->where("b_id='$b_id'")->update(['static'=>1]);
        return 2;//计算总数大于三则不能登录
    }
    else
        {
        $name=Request::instance()->param("name");
        $pwd=Request::instance()->param("pwd");
        $a=Db::table("user")->where("name='$name'and pwd='$pwd'")->find();
        if(!$a)
        {
            $b_id=Session::get("b_id");
            $b=Db::table("user")->where("b_id='$b_id'")->find();
            $sum=$b['sum']+1;
            $now_date=time();
            Db::table("user")->where("b_id='$b_id'")->update(['sum'=>"$sum",'now_date'=>$now_date]);
            return 1;
        }else{
            return 4;//登录成功
        }
    }

}

posted @ 2018-10-14 18:41 PHP小媛阅读(1207) 评论(0) 编辑收藏举报

立里青争

密码错误三次限制登录

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