<?php require("ClassDataBase.php"); /* 文件名:count.php 功能:网页计数程序 作者:感染源 时间:2007-1-12 */ //$sql = "select etime from ipandtime where ip='$ipaddress' and id=$id"; //echo $sql; function PageCount($id) { $db = new ClassDataBase; $ipaddress = $_SERVER['REMOTE_ADDR']; //获取访问者的IP地址 $currenttime = time(); //当前访问时间 //查询当前访问IP地址是否曾经访问过本网站,获得当前访问时间 $sql = "select etime from ipandtime where ip='$ipaddress' and id=$id"; $arr = $db->QuerySQL($sql); if(!$arr) { //如果不存在当前IP,则添加到数据库 $sql = "insert into ipandtime (ip,id,etime) values('$ipaddress',$id,$currenttime)"; $db->ExecuteSQL($sql); $sql = "delete from ipandtime where etime<$currenttime-3600"; $db->ExecuteSQL($sql); $update = TRUE; $count = Updatecount($id,$update); return $count; //exit; } else { //如果存在当前IP,则更新最后登录时间 $timestamp = $arr["etime"]; $stime = $currenttime - $timestamp; //如果两次访问间隔一个小时,则更新数据库 if($stime>3600) { //更新访问时间 $sql = "update ipandtime set etime=$currenttime where ip='$ipaddress'"; $db->ExecuteSQL($sql); $sql = "delete from ipandtime where etime<$currenttime-3600"; $db->ExecuteSQL($sql); $update = TRUE; $count = Updatecount($id,$update); return $count; //exit; }//if $sql = "delete from ipandtime where etime<$currenttime-3600"; $db->ExecuteSQL($sql); $update = FALSE; $count = Updatecount($id,$update); return $count; }//if $db = null; }//function PageCount(); function Updatecount($id,$update) { $db = new ClassDataBase; $sql = "select count from encount where id=$id"; $result1 = $db->QuerySQL($sql); $count = $result1["count"]; if($update==TRUE) { ++$count; $sql = "update encount set count=$count where id=$id"; $db->ExecuteSQL($sql); }//if return $count; //$db = NULL; }//function Updatecount(); //$db = NULL;?>