$_GET for URL parameters in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get the value of the URL parameter named 'name'.

PHP

<?php
$name = $_GET[[1]];
echo "Hello, $name!";
?>

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

A"name"

B"value"

Cname

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the parameter name.

Using a variable instead of a string key.

URL parameters are accessed as strings inside $_GET, so the key must be quoted.

2fill in blank

medium

Complete the code to check if the URL parameter 'age' is set.

PHP

<?php
if (isset($_GET[[1]])) {
    echo "Age is set.";
} else {
    echo "Age is not set.";
}
?>

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

Aage

B"age"

CAGE

D"AGE"

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted parameter names in isset().

Using uppercase letters instead of lowercase.

Use quotes around the parameter name when checking with isset().

3fill in blank

hard

Fix the error in the code to safely get the 'city' parameter or use 'Unknown' if not set.

PHP

<?php
$city = $_GET[[1]] ?? 'Unknown';
echo "City: $city";
?>

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

A"City"

Bcity

CCity

D"city"

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted keys causing undefined index errors.

Using wrong case for parameter names.

The key must be a quoted string to access the $_GET array correctly.

4fill in blank

hard

Fill both blanks to create an associative array with key as parameter name and value from $_GET for 'user'.

PHP

<?php
$data = [[1] => $_GET[[2]]];
print_r($data);
?>

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

A"user"

B"email"

Cuser

Demail

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted keys causing errors.

Mixing parameter names between key and value.

Both the array key and the $_GET key must be quoted strings matching the parameter name.

5fill in blank

hard

Fill all three blanks to loop through $_GET and print each parameter and its value.

PHP

<?php
foreach ($_GET as [1] => [2]) {
    echo [3] . ': ' . [2] . "<br>";
}
?>

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

A$key

B$value

C$param

D$item

Attempts:

3 left

💡 Hint

Common Mistakes

Using the same variable for key and value.

Using undefined variables in echo.

Use $key and $value as variable names in the foreach loop. The first blank is the key, the second is the value, and the third blank is the key used in echo.