Cookies are files stored on the user computer.They are used to store user data which is mainly used to identify a user whenever they visit the website again. A cookie can be set by using a function called:
"setcookie()".
The setcookie() function can be used to set cookie in php.After setting the cookie make sure you call the function before any output can be displayed. A COOKIE RESIDES ON THE USER'S COMPUTER
Parameters that are in the setcookie() function.
setcookie{name,value,expire,domain};
NoteName:The name of the cookie set.Here's is a php script that uses the setcookie() function to create a cookie.Name:My first cookie, value:"Lorem ipsum", Expire:time() + (3600).The 3600 that is set in the time, means it the cookie willexpire in 1hour.
Value:The value of the cookie and ensure tou dont set sensitive information in it.
Expire:The expire date can be set with a UNIX time-stamp.
Domain:the specified domain where the cookie is available.
<?php
$name="MyFirstCookie";
$value = 'lorem ipsum';
$expire = time() + (3600);
setcookie($name , $value, $expire);
echo $_COOKIE[$name];
?>The php code in the above example produce the following output.
To check if a cookie is set or not you can use a php isset() function.
<?php
$name="MyFirstCookie";
$value = 'lorem ipsum';
$expire = time() + (3600);
setcookie($name , $value, $expire);
if(isset($name['MyFirstCookie'])){
echo "hi";
}else{
echo "welcome to the world of cookie";
}
?>
what are session:Session are used to store user information, which can be used accross many webpages.A session is started with the session_start function.SESSION INFORMATION RESIDES ON THE WEB SERVER
SESSION INFORMATION RESIDES ON THE WEB SERVER
Here's is an example of a session.
<?php
// Start the session
session_start();
?>
<!DOCTYPE html>
<html>
<body>
<?php
// Set session variables
$_SESSION["name"] = "Session";
$_SESSION["Value"] = "ipsum dolor";
echo "Session variables are set.";The php code in the above exapmle shows the following output.
?>
</body>
</html>
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