Difference Between Session and Cookie

Difference Between Session and Cookie in PHP

Cookies are stored in browser as a text file format. It is stored limit amount of data.It is only allowing 4kb[4096bytes]. It is not holding the multiple variable in cookies.

Sessions are stored in server side. It is stored unlimited amount of data.It is holding the multiple variable in sessions. we cannot accessing the cookies values in easily.So it is more secure.

Example of Cookie

<?php
 
  setcookie(name, value, expire, 
path,domain, secure, httponly);

  $cookie_uame = "user";

  $cookie_uvalue= "Hitesh Kumar";

  //set cookies for 1 hour time
  setcookie($cookie_uname,
$cookie_uvalue, 3600, "/");

  //expire cookies
setcookie($cookie_uname,"",-3600);

?>

Example of Session

<?php
    
session_start();

//session variable
$_SESSION['user'] = 'Hitesh';
 
//destroyed the entire sessions

session_destroy(); 
       
//Destroyed the session 
variable "user".
unset($_SESSION['user']);
?>