php+mysql文章浏览次数统计及发布时间

session_start();
$stsfile = "10001.php";
$nowtime = time();
date_default_timezone_set("Asia/Chongqing");//设置时间标准
If (!isset($_SESSION['article']) || $_SESSION['article'] != $stsfile ) //判断用户是否在线
{
$link = mysql_connect("localhost","库名","密码") or die ("打开数据库失败");
mysql_select_db("库名",$link); //连接数据库
mysql_query("set names 'utf8'"); //设置存取编码

//查询$stsfile的记录是否已经存在，如果不存在就插入时间及计数基数0，如果存在，则+1，更新计数。
$sql = "SELECT * FROM statistics WHERE `StsFile`= '$stsfile'";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
If (empty($row['StsID']))
{

 
mysql_query("INSERT INTO `statistics`(`StsFile`,`StsTime`,`StsNumb`) VALUES ('$stsfile','$nowtime','0')");
session_start();
$_SESSION['article'] = $stsfile;
}
Else
{
$numb = $row['StsNumb']+1;
mysql_query("UPDATE `statistics` SET `StsNumb` = '$numb' WHERE `StsFile` = '$stsfile'");
session_start();
$_SESSION['article'] = $stsfile; //写下$_SESSION[]
}
}
?>

$link = mysql_connect("localhost","库名","密码") or die ("打开数据库失败");
mysql_select_db("库名",$link); //连接数据库
mysql_query("set names 'utf8'"); //设置存取编码
$sql = "SELECT * FROM statistics WHERE `StsFile`= '$stsfile'";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
echo "上传时间：".date("Y-m-d H:i:s",$row['StsTime'])."　浏览数：".$row['StsNumb'];

 ?>