Setting and reading cookies in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set a cookie named "user" with value "Alice".

PHP

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

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

A"Alice"

BAlice

C'user'

D"user"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put the cookie value in quotes.

Using the cookie name instead of the value.

The setcookie function requires the cookie value as a string, so it must be in quotes.

2fill in blank

medium

Complete the code to read the cookie named "user" and store it in the variable $username.

PHP

<?php
$username = $_COOKIE[[1]];
?>

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

A'username'

Buser

C"user"

Dusername

Attempts:

3 left

💡 Hint

Common Mistakes

Using the cookie name without quotes.

Using the variable name instead of the cookie name.

When accessing a cookie from the $_COOKIE array, the key must be a string in quotes.

3fill in blank

hard

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

PHP

<?php
setcookie("session", "abc123", [1]);
?>

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

Atime() - 3600

B"3600"

C3600

Dtime() + 3600

Attempts:

3 left

💡 Hint

Common Mistakes

Using just 3600 instead of a timestamp.

Using a negative timestamp which deletes the cookie.

The third parameter 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 create 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"user"

D"light"

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the name and value.

Forgetting quotes around strings.

The first parameter is the cookie name as a string, the second is the value as a string.

5fill in blank

hard

Fill all three blanks to read the cookie "language" safely, providing a default value "en" if it does not exist.

PHP

<?php
$lang = isset($_COOKIE[[1]]) ? $_COOKIE[[2]] : [3];
?>

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

A"language"

C"en"

D"default"

Attempts:

3 left

💡 Hint

Common Mistakes

Using different strings for the cookie name in the two places.

Not providing a default value.

Check if the cookie "language" exists with isset, then read it; otherwise, use the default "en".