php traffic statistics function implementation code

Flow statistics function
Display effect:
Total visits: 399
Today's flow: 14
Yesterday's flow: 16
This code is for learning and communication only, there must be something wrong with it. Please forgive me!
--
-- the structure of the table 'mycounter'
--

 
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 ; 

The function process is as follows:

 
<?PHP 
public function ShowMyCounter(){ 
// Define variables  
$IsGone = FALSE; 
// Read the data  
$querysql = "SELECT * FROM `mycounter` WHERE id = Ƈ' "; 
$queryset = mysql_query($querysql); 
$row = mysql_fetch_array($queryset); 
// Acquisition time quantity  
$DateNow = date('Y-m-d'); 
$RecordDate = $row['RecordDate']; 
$DateNow_explode = explode("-",$DateNow); 
$RecordDate_explode = explode("-",$RecordDate); 
// Judge whether it is past 1 day  
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] ) $IsGone = TRUE; 
}else BREAK; 
}else BREAK; 
// According to the IsGone Operate accordingly  
IF($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); 
} 
// Get the data again  
$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 " Total visits: ".$Counter; 
echo " 
"; 
echo " Today's traffic: ".$CounterToday; 
echo " 
"; 
echo " Yesterday's flow: ".$CounterLastDay; 
}else{// If the database is empty, the corresponding operation  
} 
} 
?> 

Of course, you need to start at line 1 of the file with the following code:

 
<?PHP 
session_start(); 
if( !isset($_COOKIE["user"]) ){ 
setcookie("user","newGuest",time()+3600); 
}else { 
setcookie("user","oldGuest"); 
} 
?>