<?php
$value = 'cookie value';
setcookie ("TestCookie", $value,time()+3600);  // expire in 1 hour 
?>

• Cookies sent from the client are automatically turned into a PHP variable
• Allows data to be stored on the client web browser
• Can be used for tracking users or identifying return users

We can read the value of a cookie as follows

<?php echo $_COOKIE["TestCookie"]; ?>