php流量统计功能的实现代码

　　CREATE TABLE `mycounter` (

　　`id` int(11) NOT NULL auto_increment,

　　`Counter` int(11) NOT NULL,

　　`CounterLastDay` int(10) default NULL,

　　`CounterToday` int(10) default NULL,

　　`RecordDate` date NOT NULL,

　　PRIMARY KEY (`id`)

　　) ENGINE=InnoDB DEFAULT CHARSET=gbk AUTO_INCREMENT=2 ;

　　<?PHP

　　public function ShowMyCounter(){

　　//定义变量

　　$IsGone = FALSE;

　　//读取数据

　　$querysql = "SELECT * FROM `mycounter` WHERE id = Ƈ' ";

　　$queryset = mysql_query($querysql);

　　$row = mysql_fetch_array($queryset);

　　//获得时间量

　　$DateNow = date('Y-m-d');

　　$RecordDate = $row['RecordDate'];

　　$DateNow_explode = explode("-",$DateNow);

　　$RecordDate_explode = explode("-",$RecordDate);

　　//判断是否已过去一天

　　if( $DateNow_explode[0] > $RecordDate_explode[0]) $IsGone = TRUE;

　　else if( $DateNow_explode[0] == $RecordDate_explode[0] ){

　　if( $DateNow_explode[1] > $RecordDate_explode[1] ) $IsGone = TRUE;

　　else if( $DateNow_explode[1] == $RecordDate_explode[1] ){

　　if( $DateNow_explode[2] > $RecordDate_explode[2] ) $IsGone = TRUE;

　　}else BREAK;

　　}else BREAK;

　　//根据IsGone进行相应操作

　　IF($IsGone) {

　　$RecordDate = $DateNow;

　　$CounterToday = 0;

　　$CounterLastDay = $row['CounterToday'];

　　$upd_sql = "update mycounter set RecordDate = '$RecordDate',CounterToday = '$CounterToday',CounterLastDay = '$CounterLastDay' WHERE id = Ƈ' ";

　　mysql_query($upd_sql);

　　}

　　//再次获取数据

　　$querysql = "SELECT * FROM `mycounter` WHERE id = Ƈ' ";

　　$queryset = mysql_query($querysql);

　　$Counter = $row['Counter'];

　　$CounterToday = $row['CounterToday'];

　　$CounterLastDay = $row['CounterLastDay'];

　　if($row = mysql_fetch_array($queryset) ){

　　if( $_COOKIE["user"] != "oldGuest" ){

　　$Counter = ++$row['Counter'];

　　$CounterToday = ++$row['CounterToday'];

　　$upd_sql = "update mycounter set counter = '$Counter',CounterToday = '$CounterToday' WHERE id = Ƈ' ";

　　$myquery = mysql_query($upd_sql);

　　}

　　echo "总访问量：".$Counter;

　　echo "

　　";

　　echo "今日流量：".$CounterToday;

　　echo "

　　";

　　echo "昨日流量：".$CounterLastDay;

　　}else{//如果数据库为空时，相应的操作

　　}

　　}

　　?>

　　<?PHP

　　session_start();

　　if( !isset($_COOKIE["user"]) ){

　　setcookie("user","newGuest",time()+3600);

　　}else {

　　setcookie("user","oldGuest");

　　}

　　?>