Statistics through session and cookie

Statistics through session and cookie

// Statistics through session
//Use text to store data
if($_SESSION[temp]==""){ //Judge whether the value of $_SESSION[temp]=="" is empty, where temp is a custom variable
 if(($fp=fopen("counter.txt","r"))==false){
 echo "Failed to open file!";
 }else{
 $counter=fgets( $fp,1024); //Read the data in the file
 fclose($fp); //Close the text file
 $counter++; //Increase the counter by 1
 $fp=fopen("counter.txt","w") ; //Open the text file for writing
 fputs($fp,$counter); //Increase the new statistics by 1
 fclose($fp); } //Close the text
 $_SESSION[temp]=1; //After the counter value is increased, assign 1 to $_SESSION[temp]
}
//Read statistical data from the text file
 if(($fp=fopen("counter. txt","r"))==false){
 echo "Failed to open file!";
 }else{
 $counter=fgets($fp,1024);
 fclose($fp);
 }
// ---------------------------------------
// Statistics through cookies
$f_open = fopen ("count.txt","r+"); //Open the specified file
$count = fgets($f_open); //Read the data in the file
if(empty($_COOKIE['cookie_name'])) { //Determine whether the COOKIE exists
 setcookie("cookie_name",value,time()+1800); //If it does not exist, create the COOKIE
 $count = $count + 1; //Change the value of the variable $count Add 1
 rewind($f_open); //Open the specified file
 fwrite($f_open,$count); //Write new data to the file
 fclose($f_open); //Close the file
}