php+mysql实现统计网站访问量(一)

环境：centos6.9；mysql5.1；php7.2

1.创建一个存储数据的表

create table wp_jc_count(
    id int not null auto_increment primary key,
    ip varchar(20) not null,
    times int default 0
    );

2.创建一个php脚本

";
        //echo $_SERVER['REMOTE_ADDR']."
";
    }else{
        echo "失败\n";
        die(mysqli_connect_error());
    }
    //设置数据库编码方式
    mysqli_set_charset($conn,"utf8") or die(mysqli_connect_error());
    //记录访客的ip地址
    $address=$visitor->getIp();
    //查询当前访客来访的次数的sql语句
    $sql="select times from wp_jc_count where ip='$address'";
    //查询结果存到$result变量
    $result=mysqli_query($conn,$sql) or die(mysqli_connect_error());
    if(!$row=$result->fetch_row()){
       $sql="insert into wp_jc_count(ip, times) values('$address','1')";
    }else{
        $times=$row['0']+1;
        $sql="update wp_jc_count set times='$times' where ip ='$address'";
    }
    $result=mysqli_query($conn,$sql) or die(mysqli_connect_error());
    //获取总的访问人数即数据表中所有ip的数量
    $sql="select count(ip) from wp_jc_count";
    $result=mysqli_query($conn,$sql) or die(mysqli_connect_error());
    if($row=$result->fetch_row()){
        $num=$row[0];
    }
    echo "您是第".$num."位访客";
    mysqli_close($conn);
?>

3.将上述代码贴到footer.php中要输出信息的位置即可

当前功能较少，后续会增加一些功能；

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参考资料：https://www.cnblogs.com/jianqingwang/p/7017495.html
参考资料：https://www.jianshu.com/p/343ed80b4dca
参考资料：(https://blog.csdn.net/ld0807/article/details/54178652](https://blog.csdn.net/ld0807/article/details/54178652)
原文:http://blog.isdevil.com/cjerrybird/2019/02/phpmysql%e5%ae%9e%e7%8e%b0%e7%bb%9f%e8%ae%a1%e7%bd%91%e7%ab%99%e8%ae%bf%e9%97%ae%e9%87%8f%e4%b8%80.html