thinkphp框架同一个账户在一个浏览器中登录。A浏览器登录了，B登录A下线，

怼烎@ 2022-09-27 15:22 94阅读 0赞

common控制器

$admin_db = D('Admin'); $userid = session('userid'); $map = array(); $map["session_id"] = session_id(); $exists = $admin_db->where(array('userid'=>$userid))->field('session_id')->find();//获取已经存入数据库IP if($map != $exists){ session('userid', null); session('roleid', null); cookie('username', null); cookie('userid', null); $this->success('您已经被迫下线！', U('Index/login')); }

前台html

<!DOCTYPE html>
    <html lang="zh-CN">
    <head>
    <meta charset="utf-8">
    <meta name="author" content="wangdong">
    <title><{:C('SYSTEM_NAME')}> - 用户登录</title>
    <include file="Common:head"/>
    <style type="text/css">
    form{
      width:280px;height:120px;margin:30px auto 0;}
    form div label{
      float:left;display:block;width:65px;font-size:16px;padding-top:6px;}
    form div{
      margin:8px auto;}
    form div.input input{
      height:21px;padding:2px 3px;}
    form div.input img{
      cursor:pointer}
    #username,#password{
      width:200px;}
    #code{
      width:68px}
    </style>
    </head>
    <body>
    <div class="easyui-dialog" title="用户登录" style="width:380px;height:240px" data-options="closable:false,iconCls:'icons-lock-lock',buttons:[{text:'登录',iconCls:'icons-user-user_go',handler:login}]">
       <form id='form' method="post">
          <div class="input">
             <label for="username">用户名:</label>
               <input type="text" name="username" id="username" value="admin" />
          </div>
          <div class="input">
             <label for="password">密  码:</label>
               <input type="password" name="password" id="password" value="admin@123" />
          </div>
          <div class="input">
             <label for="code">验证码:</label>
               <input type="text" name="code" id="code" size="4" />
               <span style="margin-left:10px"><img id="code_img" align="top" οnclick="changeCode()" src="<{:U('Index/code?code_len=4&font_size=14&width=100&height=28&code='.time())}>" title="点击切换验证码"></span>
          </div>
       </form>
    </div>
    
    </div>
    <script type="text/javascript">
    $(function(){
       $('input:text:first').focus();
       $('form').keyup(function(event){
          if(event.keyCode ==13){
             login();
          }
       });
    })
    var changeCode = function(){
       var that = document.getElementById('code_img');
       that.src = that.src + '&' + Math.random();
    }
    var login = function(){
       if(!$('#username').val()){
          $.messager.alert('提示信息', '请填写用户名', 'error');
          return false;
       }
       if(!$('#password').val()){
          $.messager.alert('提示信息', '请填写密码', 'error');
          return false;
       }
       if(!$('#code').val()){
          $.messager.alert('提示信息', '请填写验证码', 'error');
          return false;
       }
       var loginIn = $.post('<{:U('Index/login?dosubmit=1')}>', $("form").serialize(), function(data){ if(!data.status){ $.messager.alert('提示信息', data.info, 'error',function(){ var erroinfo = "<{:C('LOGIN_STATUS_ERROR')}>"; if(data.info==erroinfo){ $.messager.confirm("提示", "是否强制登录？", function (data) { if (data) { //var username = document.getElementById("username").value; $.post( '<{:U('Update/index/index?dosubmit=1')}>', $("form").serializeArray(), function(res){ if(res == 1){ $.messager.alert("提示","现在可以登录了!",'info'); }else{ return false; } } ) } }); } }); changeCode(); }else{ $.messager.progress({text:'加载中，请稍候...'}); window.location.href = data.url; } },'json'); return false;
    }
    </script>
    </body>
    </html>

<{:C('LOGIN_STATUS_ERROR')}>config中

'LOGIN_STATUS_ERROR' =>'该用户已在其它地方登录',

最后还有一个修改，用于修改登录状态。放于其它模块Update，之前的都是admin模块中

<?php namespace Update\Controller;
    use Think\Controller;
    
    class IndexController extends Controller {
        public function Index(){
            if(I('get.dosubmit')){
                $where = array();
                $where['username'] = I('post.username');
    
                $admin = D('Admin');
                $save1 = array();
                $save1['status'] = "0";
                $save1['lastloginip'] = get_client_ip();
                $save1['datetime'] = time();
                $result = $admin->where($where)->save($save1);
                if($result){
                    echo 1;
                }else{
                    echo 0;
                }
            }
        }
    }