Session variables in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start a session in PHP.

PHP

<?php
[1];
?>

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

Asession_start()

Bstart_session()

Csession_begin()

Dbegin_session()

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect function names like start_session() or session_begin().

Forgetting the parentheses after the function name.

In PHP, session_start() is used to start a session or resume the current one.

2fill in blank

medium

Complete the code to set a session variable named 'user' with value 'Alice'.

PHP

<?php
session_start();
$_SESSION[[1]] = 'Alice';
?>

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

Auser_name

Buser

C'user'

D"user"

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around the session key.

Using a different key name than 'user'.

Session keys must be strings, so use quotes around 'user'.

3fill in blank

hard

Fix the error in the code to correctly retrieve the session variable 'user'.

PHP

<?php
session_start();
$username = $_SESSION[1]user[2];
echo $username;
?>

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

A['

B["

C']

D{

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses or curly braces instead of square brackets.

Not using quotes around the key.

Session variables are accessed using square brackets and quotes around the key.

4fill in blank

hard

Fill both blanks to check if a session variable 'loggedIn' is set and true.

PHP

<?php
session_start();
if (isset($_SESSION[1]loggedIn[2]) && $_SESSION['loggedIn'] === true) {
    echo 'Welcome!';
}
?>

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

A['

B"

C']

D)

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses or missing quotes.

Using double quotes inconsistently.

Use square brackets with quotes to check if the session variable exists.

5fill in blank

hard

Fill all three blanks to unset the session variable 'cart', destroy the session, and redirect to 'index.php'.

PHP

<?php
session_start();
unset($_SESSION[1]cart[2]);
session[3]();
header('Location: index.php');
exit();
?>

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

A['

B']

Cdestroy

Dclose

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong brackets or missing quotes in unset.

Using session_close() instead of session_destroy().

To remove a session variable, use unset($_SESSION['cart']). To end the session, use session_destroy().