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 } }
}
原文地址：https://www.cnblogs.com/stj123/p/9787379.html
时间： 2024-08-03 23:43:31