效果图

废话不多说直接上代码
把下面的这个html放在headnav.php的以下位置

<li class="dropdown pos-stc" id="StateDataPos">
            <a id="StateData" href="#" data-toggle="dropdown" class="dropdown-toggle feathericons dropdown-toggle">
              <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-activity"><polyline points="22 12 18 12 15 21 9 3 6 12 2 12"></polyline></svg>
              <span class="caret"></span>
            </a>
            <div class="dropdown-menu wrapper w-full bg-white">
                <div class="row">
                    <div class="col-sm-4 b-l b-light">
                        <div class="m-t-xs m-b-xs font-bold">运行状态</div>
                        <div class="">
                            <span class="pull-right text-danger" id="cpu">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>CPU占用
                                <span class="badge badge-sm bg-dark">4核处理器</span>
                            </span>
                        </div>
                        <div class="progress progress-xs m-t-sm bg-default">
                            <div id="cpu_css" class="progress-bar bg-danger" data-toggle="tooltip" style="width: 100%"></div>
                        </div>
                        <div class="">
                            <span class="pull-right text-danger" id="memory">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>占用内存
                                <span class="badge badge-sm bg-dark" id="memory_data">
                                    <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                                </span>
                            </span>
                        </div>
                        <div class="progress progress-xs m-t-sm bg-default">
                            <div id="memory_css" class="progress-bar bg-danger" data-toggle="tooltip" style="width: 100%"></div>
                        </div>
                        <div class="">
                            <span class="pull-right text-danger" id="disk">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>磁盘占用
                                <span class="badge badge-sm bg-dark" id="disk_data">
                                    <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                                </span>
                            </span>
                        </div>
                        <div class="progress progress-xs m-t-sm bg-default">
                            <div id="disk_css" class="progress-bar bg-danger" data-toggle="tooltip" style="width: 100%"></div>
                        </div>
                        <div class="">
                            <span class="pull-right text-danger" id="memCached">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>内存缓存
                                <span class="badge badge-sm bg-dark" id="memCached_data">
                                    <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                                </span>
                            </span>
                        </div>
                        <div class="progress progress-xs m-t-sm bg-default">
                            <div id="memCached_css" class="progress-bar bg-danger" data-toggle="tooltip" style="width: 100%"></div>
                        </div>
                        <div class="">
                            <span class="pull-right text-danger" id="memBuffers">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>内存缓冲
                                <span class="badge badge-sm bg-dark" id="memBuffers_data">
                                    <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                                </span>
                            </span>
                        </div>
                        <div class="progress progress-xs m-t-sm bg-default">
                            <div id="memBuffers_css" class="progress-bar bg-danger" data-toggle="tooltip" style="width: 100%"></div>
                        </div>
                        <div class="">
                            <span class="pull-right text-danger" id="state_s">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>系统负载
                                <span id="state">
                                    <span class="badge badge-sm bg-dark">
                                        <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                                    </span>
                                </span>
                            </span>
                        </div>
                        <div class="progress progress-xs m-t-sm bg-default">
                            <div id="state_css" class="progress-bar bg-danger" data-toggle="tooltip" style="width: 100%"></div>
                        </div>
                    </div>
                    <div class="col-sm-4 b-l b-light visible-lg visible-md">
                        <div class="m-t-xs m-b-xs font-bold">网络状态</div>
                        <div class="">
                            <span class="pull-right text-default" id="io">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>IO</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="io1">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>实时IO</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="eth">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>网络</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="eth1">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>实时网络</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="time">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>服务器时间</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default">
                                <span class="badge badge-sm bg-dark"><?php echo $_SERVER['SERVER_SOFTWARE']; ?></span></span>
                            <span>WEB服务器</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default">
                                <span class="badge badge-sm bg-dark"><?php echo $_SERVER['SERVER_PROTOCOL']; ?></span>
                            </span>
                            <span>通信协议</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default">
                                <span class="badge badge-sm bg-dark"><?php echo PHP_VERSION;?></span>
                            </span>
                            <span>PHP版本</span>
                        </div>
                        <br/>
                    </div>
                    <div class="col-sm-4 b-l b-light visible-lg visible-md">
                        <div class="m-t-xs m-b-sm font-bold">访客信息</div>
                        <div class="">
                            <span class="pull-right text-default" id="u_time">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>持续运行</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="ip">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>您的IP</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="address">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>网络地址</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="b">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>浏览器信息</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="sys">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>您的设备</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default">
                                <span class="badge badge-sm bg-dark"><?php echo $_SERVER['REQUEST_METHOD'];?></span></span>
                            <span>请求方法</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default">
                                <span class="badge badge-sm bg-dark"><?php echo $_SERVER['HTTP_ACCEPT_LANGUAGE'];?></span></span>
                            <span>服务语言</span>
                        </div>
                        <br/>
                        <div class="">
                            <span class="pull-right text-default" id="sys_times">
                                <i class="fa fa-spinner fa-spin" aria-hidden="true"></i>
                            </span>
                            <span>您的设备时间</span>
                        </div>
                    </div>
                </div>
            </div>
        </li>

把下面这串你看不懂js代码丢在footer.php底部哈

<script>
var stateUrl = 'https://open.gmit.vip/web/lib/state';
var se_rx;
var se_tx;
var si_rx;
var si_tx;
function returnFloat(value){
    return value.toFixed(2)+'%';
}
function floats(value){
    return value.toFixed(2);
}
function getPercent(curNum, totalNum, isHasPercentStr) {
    curNum = parseFloat(curNum);
    totalNum = parseFloat(totalNum);

    if (isNaN(curNum) || isNaN(totalNum)) {
        return 'Error';
    }

    return isHasPercentStr ?
        totalNum <= 0 ? '0%' : (Math.round(curNum / totalNum * 10000) / 100.00 + '%') :
        totalNum <= 0 ? 0 : (Math.round(curNum / totalNum * 10000) / 100.00  + '%');
}
function getPercents(curNum, totalNum, isHasPercentStr) {
    curNum = parseFloat(curNum);
    totalNum = parseFloat(totalNum);

    if (isNaN(curNum) || isNaN(totalNum)) {
        return 'Error';
    }

    return isHasPercentStr ?
        totalNum <= 0 ? '0%' : (Math.round(curNum / totalNum * 10000) / 100.00) :
        totalNum <= 0 ? 0 : (Math.round(curNum / totalNum * 10000) / 100.00);
}
function setSize(value,d){
    switch (d) {
        case 'bit':
            return bit = value*8;
            break;
        case 'bytes':
            return value;
            break;
        case 'kb':
            return value/1024;
            break;
        case 'mb':
            return value/1024/1024;
            break;
        case 'gb':
            return value/1024/1024/1024;
            break;
        case 'tb':
            return value/1024/1024/1024/1024;
            break;
    }
}
function ForDight(Dight){ 
    if (Dight < 0){
        var Last = 0+"B/s";
    }else if (Dight < 1024){
        var Last = setSize(Dight,'bytes').toFixed(0)+"B/s";
    }else if (Dight < 1048576){
        var Last = floats(setSize(Dight,'kb'))+"K/s";
    }else{
        var Last = floats(setSize(Dight,'mb'))+"MB/s";
    }
    return Last; 
}
function state(){
    $.ajax({
        url: stateUrl,
        type: 'get',
        dataType: 'json',
        data: {
            action:'fetch',
        },
        beforeSend:function(){
            
        },
        complete:function(){
            
        },
        error: function() {
        }, 
        success: function (data) {
            var cpu = data.serverStatus.cpuUsage['user']+data.serverStatus.cpuUsage['nice']+data.serverStatus.cpuUsage['sys'];
            $("#cpu").html(returnFloat(cpu));
            $("#cpu_css").css("width",returnFloat(cpu));
            if(cpu<70){
                $("#cpu_css").removeClass();
                $("#cpu_css").addClass("progress-bar bg-success");
                $("#cpu").removeClass();
                $("#cpu").addClass("pull-right text-success");
            }
            if(cpu>=70){
                $("#cpu_css").removeClass();
                $("#cpu_css").addClass("progress-bar bg-warning");
                $("#cpu").removeClass();
                $("#cpu").addClass("pull-right text-warning");
            }
            if(cpu>=90){
                $("#cpu_css").removeClass();
                $("#cpu_css").addClass("progress-bar bg-danger");
                $("#cpu").removeClass();
                $("#cpu").addClass("pull-right text-danger");
            }
            
            var memory_value = data.serverStatus.memRealUsage['value'];
            var memory_max = data.serverStatus.memRealUsage['max'];
            $("#memory").html(getPercent(memory_value,memory_max,memory_value));
            window.RemData = getPercents(memory_value,memory_max,memory_value);
            $("#memory_css").css("width",getPercent(memory_value,memory_max,memory_value));
            var me = getPercents(memory_value,memory_max,memory_value);
            if(me<70){
                $("#memory_css").removeClass();
                $("#memory_css").addClass("progress-bar bg-success");
                $("#memory").removeClass();
                $("#memory").addClass("pull-right text-success");
            }
            if(me>=70){
                $("#memory_css").removeClass();
                $("#memory_css").addClass("progress-bar bg-warning");
                $("#memory").removeClass();
                $("#memory").addClass("pull-right text-warning");
            }
            if(me>=90){
                $("#memory_css").removeClass();
                $("#memory_css").addClass("progress-bar bg-danger");
                $("#memory").removeClass();
                $("#memory").addClass("pull-right text-danger");
            }
            if(floats(setSize(memory_value,'mb'))>1024){
                var memory_data_value = floats(setSize(memory_value,'gb'))+"GB";
            } else{
                var memory_data_value = floats(setSize(memory_value,'mb'))+"MB";
            }
            if(floats(setSize(memory_max,'mb'))>1024){
                var memory_data_max = floats(setSize(memory_max,'gb'))+"GB";
            } else{
                var memory_data_max = floats(setSize(memory_max,'mb'))+"MB";
            }
            $("#memory_data").html(memory_data_value+" / "+memory_data_max);
            
            var disk_value = data.serverInfo.diskUsage['value'];
            var disk_max = data.serverInfo.diskUsage['max'];
            $("#disk").html(getPercent(disk_value,disk_max,disk_value));
            $("#disk_css").css("width",getPercent(disk_value,disk_max,disk_value));
            var dk = getPercents(disk_value,disk_max,disk_value);
            if(dk<70){
                $("#disk_css").removeClass();
                $("#disk_css").addClass("progress-bar bg-success");
                $("#disk").removeClass();
                $("#disk").addClass("pull-right text-success");
            }
            if(dk>=70){
                $("#disk_css").removeClass();
                $("#disk_css").addClass("progress-bar bg-warning");
                $("#disk").removeClass();
                $("#disk").addClass("pull-right text-warning");
            }
            if(dk>=90){
                $("#disk_css").removeClass();
                $("#disk_css").addClass("progress-bar bg-danger");
                $("#disk").removeClass();
                $("#disk").addClass("pull-right text-danger");
            }
            if(floats(setSize(disk_value,'mb'))>1024){
                var disk_data_value = floats(setSize(disk_value,'gb'))+"GB";
            } else{
                var disk_data_value = floats(setSize(disk_value,'mb'))+"MB";
            }
            if(floats(setSize(disk_max,'mb'))>1024){
                var disk_data_max = floats(setSize(disk_max,'gb'))+"GB";
            } else{
                var disk_data_max = floats(setSize(disk_max,'mb'))+"MB";
            }
            $("#disk_data").html(disk_data_value+" / "+disk_data_max);
            
            var memCached_value = data.serverStatus.memCached['value'];
            var memCached_max = data.serverStatus.memCached['max'];
            $("#memCached").html(getPercent(memCached_value,memCached_max,memCached_value));
            $("#memCached_css").css("width",getPercent(memCached_value,memCached_max,memCached_value));
            var mem = getPercents(memCached_value,memCached_max,memCached_value);
            if(mem<70){
                $("#memCached_css").removeClass();
                $("#memCached_css").addClass("progress-bar bg-success");
                $("#memCached").removeClass();
                $("#memCached").addClass("pull-right text-success");
            }
            if(mem>=70){
                $("#memCached_css").removeClass();
                $("#memCached_css").addClass("progress-bar bg-warning");
                $("#memCached").removeClass();
                $("#memCached").addClass("pull-right text-warning");
            }
            if(mem>=90){
                $("#memCached_css").removeClass();
                $("#memCached_css").addClass("progress-bar bg-danger");
                $("#memCached").removeClass();
                $("#memCached").addClass("pull-right text-danger");
            }
            if(floats(setSize(memCached_value,'mb'))>1024){
                var memCached_data_value = floats(setSize(memCached_value,'gb'))+"GB";
            } else{
                var memCached_data_value = floats(setSize(memCached_value,'mb'))+"MB";
            }
            if(floats(setSize(memCached_max,'mb'))>1024){
                var memCached_data_max = floats(setSize(memCached_max,'gb'))+"GB";
            } else{
                var memCached_data_max = floats(setSize(memCached_max,'mb'))+"MB";
            }
            $("#memCached_data").html(memCached_data_value+" / "+memCached_data_max);
            
            var memBuffers_value = data.serverStatus.memBuffers['value'];
            var memBuffers_max = data.serverStatus.memBuffers['max'];
            $("#memBuffers").html(getPercent(memBuffers_value,memBuffers_max,memBuffers_value));
            $("#memBuffers_css").css("width",getPercent(memBuffers_value,memBuffers_max,memBuffers_value));
            var memB = getPercents(memCached_value,memCached_max,memCached_value);
            if(memB<70){
                $("#memBuffers_css").removeClass();
                $("#memBuffers_css").addClass("progress-bar bg-success");
                $("#memBuffers").removeClass();
                $("#memBuffers").addClass("pull-right text-success");
            }
            if(memB>=70){
                $("#memBuffers_css").removeClass();
                $("#memBuffers_css").addClass("progress-bar bg-warning");
                $("#memBuffers").removeClass();
                $("#memBuffers").addClass("pull-right text-warning");
            }
            if(memB>=90){
                $("#memBuffers_css").removeClass();
                $("#memBuffers_css").addClass("progress-bar bg-danger");
                $("#memBuffers").removeClass();
                $("#memBuffers").addClass("pull-right text-danger");
            }
            if(floats(setSize(memBuffers_value,'mb'))>1024){
                var memBuffers_data_value = floats(setSize(memBuffers_value,'gb'))+"GB";
            } else{
                var memBuffers_data_value = floats(setSize(memBuffers_value,'mb'))+"MB";
            }
            if(floats(setSize(memBuffers_max,'mb'))>1024){
                var memBuffers_data_max = floats(setSize(memBuffers_max,'gb'))+"GB";
            } else{
                var memBuffers_data_max = floats(setSize(memBuffers_max,'mb'))+"MB";
            }
            $("#memBuffers_data").html(memBuffers_data_value+" / "+memBuffers_data_max);
            
            var state = "";
            for(var i = 0; i < data.serverStatus.sysLoad.length ; i++){
                state += '<span class="badge badge-sm bg-dark">'+data.serverStatus.sysLoad[i]+'</span>&nbsp;'
            }
            $("#state").html(state);
            var state_s = getPercent(data.serverStatus.sysLoad[0],2,data.serverStatus.sysLoad[0]);
            $("#state_css").css("width",state_s);
            $("#state_s").html(state_s);
            var sta = getPercents(data.serverStatus.sysLoad[0],2,data.serverStatus.sysLoad[0]);
            if(sta<70){
                $("#state_css").removeClass();
                $("#state_css").addClass("progress-bar bg-success");
                $("#state_s").removeClass();
                $("#state_s").addClass("pull-right text-success");
            }
            if(sta>=70){
                $("#state_css").removeClass();
                $("#state_css").addClass("progress-bar bg-warning");
                $("#state_s").removeClass();
                $("#state_s").addClass("pull-right text-warning");
            }
            if(sta>=90){
                $("#state_css").removeClass();
                $("#state_css").addClass("progress-bar bg-danger");
                $("#state_s").removeClass();
                $("#state_s").addClass("pull-right text-danger");
            }
            
            $("#time").html('<span class="badge badge-sm bg-dark">'+data.serverInfo.serverTime+'</span>');
            
            $("#u_time").html('<span class="badge badge-sm bg-dark">'+data.serverInfo.serverUptime["days"]+' 天'+data.serverInfo.serverUptime["hours"]+' 时 '+data.serverInfo.serverUptime["mins"]+' 分'+data.serverInfo.serverUptime["secs"]+' 秒</span>');
            
            if(floats(setSize(data.networkStats.networks.eth0.tx,'mb'))>1024){
                var aaa_tx = floats(setSize(data.networkStats.networks.eth0.tx,'gb'))+"GB";
            } else{
                var aaa_tx = floats(setSize(data.networkStats.networks.eth0.tx,'mb'))+"MB";
            }
            if(floats(setSize(data.networkStats.networks.eth0.rx,'mb'))>1024){
                var aaa_rx = floats(setSize(data.networkStats.networks.eth0.rx,'gb'))+"GB";
            } else{
                var aaa_rx = floats(setSize(data.networkStats.networks.eth0.rx,'mb'))+"MB";
            }
        
            $("#eth").html('<span class="badge badge-sm bg-dark"><i class="glyphicon glyphicon-upload" aria-hidden="true"></i>&nbsp;'+aaa_tx+'</span>&nbsp;'+
            '<span class="badge badge-sm bg-dark"><i class="glyphicon glyphicon-download" aria-hidden="true"></i>&nbsp;'+aaa_rx+'</span>');
            $("#eth1").html('<span class="badge badge-sm bg-dark"><i class="glyphicon glyphicon-cloud-upload" aria-hidden="true"></i>&nbsp;'+ForDight(data.networkStats.networks.eth0.tx-se_tx,3)+'</span>&nbsp;'+
            '<span class="badge badge-sm bg-dark"><i class="glyphicon glyphicon-cloud-download" aria-hidden="true"></i>&nbsp;'+ForDight(data.networkStats.networks.eth0.rx-se_rx,3)+'</span>');
            se_tx = data.networkStats.networks.eth0.tx;
            se_rx = data.networkStats.networks.eth0.rx;
            if(floats(setSize(data.networkStats.networks.lo.tx,'mb'))>1024){
                var lo_tx = floats(setSize(data.networkStats.networks.lo.tx,'gb'))+"GB";
            } else{
                var lo_tx = floats(setSize(data.networkStats.networks.lo.tx,'mb'))+"MB";
            }
            if(floats(setSize(data.networkStats.networks.lo.rx,'mb'))>1024){
                var lo_rx = floats(setSize(data.networkStats.networks.lo.rx,'gb'))+"GB";
            } else{
                var lo_rx = floats(setSize(data.networkStats.networks.lo.rx,'mb'))+"MB";
            }
            $("#io").html('<span class="badge badge-sm bg-dark"><i class="fa fa-upload" aria-hidden="true"></i>&nbsp;'+lo_tx+'</span>&nbsp;'+
            '<span class="badge badge-sm bg-dark"><i class="glyphicon glyphicon-cloud-download" aria-hidden="true"></i>&nbsp;'+lo_rx+'</span>');
            $("#io1").html('<span class="badge badge-sm bg-dark"><i class="glyphicon glyphicon-cloud-upload" aria-hidden="true"></i>&nbsp;'+ForDight(data.networkStats.networks.lo.tx-si_tx,3)+'</span>&nbsp;'+
            '<span class="badge badge-sm bg-dark"><i class="glyphicon glyphicon-cloud-download" aria-hidden="true"></i>&nbsp;'+ForDight(data.networkStats.networks.lo.rx-si_rx,3)+'</span>');
            si_tx = data.networkStats.networks.lo.tx;
            si_rx = data.networkStats.networks.lo.rx;
        }
    });
}
function getNowFormatDate(){
    var date = new Date();
    var seperator1 = "-";
    var seperator2 = ":";
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
      month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
      strDate = "0" + strDate;
    }
    var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate
          + " " + date.getHours() + seperator2 + date.getMinutes()
          + seperator2 + date.getSeconds();
    return currentdate;
}
function UserInfo(){
    $.ajax({
        type : "get",
        url : "https://open.gmit.vip/web/api/UserInfo/",
        async : true,
        beforeSend : function(){
            
        },
        complete : function(){
            
        },
        error : function(){
            UserInfo();
        },
        success : function(data){
            if(data!=null){
                if(data.data['location']==null){
                    UserInfo();
                }else{
                    $("#ip").html('<span class="badge badge-sm bg-dark">'+data.data['ip']+'</span>');
                    $("#address").html('<span class="badge badge-sm bg-dark">'+data.data['location']+'</span>');
                    $("#b").html('<span class="badge badge-sm bg-dark">'+data.data['browser']+'</span>');
                    $("#sys").html('<span class="badge badge-sm bg-dark">'+data.data['os']+'</span>');
                }
            }
        },
    });
};
$('#StateData').click(function(){
    clearInterval(window.getnet);
    clearInterval(window.info);
    window.getnet = setInterval(function(){
        if($('#StateDataPos').is('.open')){
            state();
            $("#sys_times").html('<span class="badge badge-sm bg-dark">'+getNowFormatDate()+'</span>');
        }
    },1000);
    UserInfo();
});
</script>

状态数据接口文件

下载下面的这个文件放在博客的根目录，然后更改上面这js代码的第一行的地址