php 怎么实现访客次数

php 怎么实现访客次数？

PHP准确的实现页面访问统计次数

1、需要两个数据库表

①、IP记录表

create table ip (ipid int(11) NOT NULL default '',ipdata varchar(16) NOT NULL default '',iptime varchar(30) NOT NULL default '', primary key(ipid));

注：ipdata为记录的访问者的ip，iptime为记录的该ip访问

②、统计次数统计表

create table count (todayipcount int(11) NOT NULL default '',allipcount int(11) NOT NULL default '',day varchar(2) NOT NULL  default '');
insert into count (todayipcount,allipcount,day) values ('0','0','0');

2、实现方法

在你的要进行统计次数的页面上放如下代码：

$realip=getip();
modifyipcount($realip);

getip()函数的代码为：

function getip()
{
        if (isset($_SERVER)) 
        {
                if (isset($_SERVER[HTTP_X_FORWARDED_FOR]) && strcasecmp($_SERVER[HTTP_X_FORWARDED_FOR], "unknown"))//代理
                {
                        $realip = $_SERVER[HTTP_X_FORWARDED_FOR];
                } 
                elseif(isset($_SERVER[HTTP_CLIENT_IP]) && strcasecmp($_SERVER[HTTP_CLIENT_IP], "unknown"))
                {
                        $realip = $_SERVER[HTTP_CLIENT_IP];
                } 
                elseif(isset($_SERVER[REMOTE_ADDR]) && strcasecmp($_SERVER[REMOTE_ADDR], "unknown"))
                {
                        $realip = $_SERVER[REMOTE_ADDR];
                } 
                else
                {
                        $realip = 'unknown';
                }
        } 
        else
        {
                if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
                {
                        $realip = getenv("HTTP_X_FORWARDED_FOR");
                }
                elseif(getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
                {
                        $realip = getenv("HTTP_CLIENT_IP");
                } 
                elseif(getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
                {
                        $realip = getenv("REMOTE_ADDR");
                } 
                else
                {
                        $realip = 'unknown';
                }
        } 
        return $realip;
}

注：此函数代码网上到处都有

modifyipcount()函数的代码为：

function modifyipcount($ip)
{
        <-----------------------数据库的连接省略------------------------->
        $query="SELECT * FROM ip where ipdata='".$ip."'";
        $result=mysql_query($query);
        $row=mysql_fetch_array($result);
        $iptime=time();
        $day=date('j');
        if(!$row)
        {
                $query="INSERT INTO ip (ipdata,iptime) VALUES ('".$ip."','".$iptime."')";
                mysql_query($query);
                $query="SELECT day,todayipcount,allipcount FROM count";
                $result=mysql_query($query);
                $row=mysql_fetch_array($result);
                $allipcount=$row['allipcount']+1;
                $todayipcount=$row['todayipcount']+1;
                if($day==$row['day'])
                {
                        $query="UPDATE count SET allipcount='".$allipcount."',todayipcount='".$todayipcount."'";
                }
                else
                {
                        $query="UPDATE count SET allipcount='".$allipcount."',day='".$day."',todayipcount='1'";
                }
                 mysql_query($query);
        }
        else
        {
                $query="SELECT iptime FROM ip WHERE ipdata='".$ip."'";
                $result=mysql_query($query);
                $row=mysql_fetch_array($result);
                $query="SELECT day,todayipcount,allipcount FROM count";
                $result=mysql_query($query);
                $row1=mysql_fetch_array($result);
                if($iptime-$row['iptime']>86400)
                {
                                                $query="UPDATE ip SET iptime='".$iptime."' WHERE ipdata='".$ip."'";
                 mysql_query($query);
                        $allipcount=$row1['allipcount']+1;
                        if($day==$row1['day'])
                        {
                                $query="UPDATE count SET allipcount='".$allipcount."'";
                        }
                        else
                        {
                                $query="UPDATE count SET allipcount='".$allipcount."',day='".$day."',todayipcount='1'";
                        }
                         mysql_query($query);
                }
                if($day!=$row1['day'])
                {
                        $query="UPDATE count SET day='".$day."',todayipcount='1'";
                         mysql_query($query);
                }        
        }
}

注：这里我设置24小时内访问统计次数只加1

这样我们调用数据库表count中的todayipcount和allipcount就可以得到今日访问IP和总访问IP，个人觉得是很准确的，欢迎大家有不同意见提出。