Cookie is the small piece of file that the server embedded in the user’s computer which is often used to identify the user thus it is a mechanism for storing the on the users browser and identify the existing or returning users.
we can set a cookie using setcookie() function .
Declaration
setcookie(“Cookie name”, “value”, ‘Expirey time ‘ , “path” , “domain”, “secure” , “httponly” );
Example :
<?php
setcookie(“Site User “, “Php Interview questions “, time() + (86400 * 30), “/”);
?>
You can simply check the cookie by :
<?php
if(!isset($_COOKIE[‘Site User’])) {
echo ‘Cookie is not set’;
} else {
echo ‘Cookie is Set ‘;
echo $_COOKIE[‘Site User’] ;
}
?>
To remove or delete the cookie , use setcookie() function in the expiration of past .
<?php
setcookie(“Site User”, “”, time() – 3600);
echo “Cookie is deleated “;
?>
For more Details : http://phpinterviewquestions.evernews.online/2018/02/what-is-difference-between-session-and.html