How cookies work in PHP - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set a cookie named 'user' with value 'John'.

PHP

<?php
setcookie([1], 'John');
?>

Drag options to blanks, or click blank then click option'

A'user'

B'username'

C'session'

D'cookie'

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong cookie name like 'username' or 'session'.

Forgetting to put the cookie name in quotes.

The setcookie function requires the cookie name as the first argument. Here, the cookie name is 'user'.

2fill in blank

medium

Complete the code to retrieve the value of the cookie named 'user'.

PHP

<?php
if(isset($_COOKIE[[1]])) {
    echo $_COOKIE['user'];
}
?>

Drag options to blanks, or click blank then click option'

A'session'

B'cookie'

C'user'

D'username'

Attempts:

3 left

💡 Hint

Common Mistakes

Checking for a cookie with a different name.

Not using quotes around the cookie name.

To check if the cookie named 'user' exists, use isset($_COOKIE['user']).

3fill in blank

hard

Fix the error in the code to set a cookie that expires in 1 hour.

PHP

<?php
setcookie('user', 'John', [1]);
?>

Drag options to blanks, or click blank then click option'

Atime() * 3600

B3600

Ctime() - 3600

Dtime() + 3600

Attempts:

3 left

💡 Hint

Common Mistakes

Using just 3600 instead of a timestamp.

Using a past time like time() - 3600.

The third argument of setcookie is the expiration time as a Unix timestamp. Use time() + 3600 for 1 hour from now.

4fill in blank

hard

Fill both blanks to set a cookie named 'theme' with value 'dark' that expires in 7 days.

PHP

<?php
setcookie([1], [2], time() + 7 * 24 * 3600);
?>

Drag options to blanks, or click blank then click option'

A'theme'

B'dark'

C'light'

D'color'

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the name and value.

Using wrong strings for name or value.

The cookie name is 'theme' and the value is 'dark'. The expiration is set to 7 days from now.

5fill in blank

hard

Fill all three blanks to delete the cookie named 'user'.

PHP

<?php
setcookie([1], [2], [3]);
?>

Drag options to blanks, or click blank then click option'

A'user'

B''

Ctime() - 3600

D'John'

Attempts:

3 left

💡 Hint

Common Mistakes

Not setting expiration to a past time.

Leaving the value as the old cookie value.

To delete a cookie, set its expiration time to a past time (like time() - 3600) and set its value to an empty string.