Delete a given PHP cookie

PHP Cookies and Sessions: Exercise-3 with Solution

Write a PHP script to delete a cookie named "username".

Sample Solution:

PHP Code :

<?php
$cookieName = "username";

// Set the cookie expiration time to the past to delete the cookie
setcookie($cookieName, "", time() - 3600);

echo "Cookie named 'username' has been deleted.";
?>

Sample Output:

Cookie named 'username' has been deleted.

Explanation:

In the above exercise -

• The variable $cookieName contains the cookie name we want to delete, "username".
• To delete the cookie, we use the setcookie() function with the same cookie name, an empty value, and a past expiration time (specifically, one hour ago). Setting the expiration time to the past causes the cookie to be immediately expired and removed from the browser.
• After deleting the cookie, we display a message indicating that the cookie named "username" has been deleted.

Flowchart:

PHP Code Editor:

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