Associative array creation in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create an associative array with keys 'name' and 'age'.

PHP

$person = array('name' => 'John', 'age' => [1]);

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

AJohn

B'30'

C30

Dage

Attempts:

3 left

💡 Hint

Common Mistakes

Putting quotes around the number, making it a string.

Using a variable name instead of a value.

The value for the key 'age' should be a number without quotes to represent an integer.

2fill in blank

medium

Complete the code to add a new key 'city' with value 'Paris' to the associative array.

PHP

$person['city'] = [1];

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

A'Paris'

BParis

C"Paris"

Dcity

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around the string value.

Using the key name as the value.

String values in PHP must be enclosed in quotes, either single or double.

3fill in blank

hard

Fix the error in the associative array creation by completing the code.

PHP

$data = array([1] => 'apple', 'b' => 'banana');

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

A'a'

Ba

C1

D"a"

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted strings as keys.

Using numbers when a string key is intended.

Keys in associative arrays must be strings or integers. Strings must be quoted.

4fill in blank

hard

Fill both blanks to create an associative array with keys 'x' and 'y' and values 10 and 20.

PHP

$coords = array([1] => [2], 'y' => 20);

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

A'x'

B10

C'10'

Dx

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted keys.

Putting quotes around numeric values.

The key 'x' must be a string with quotes, and the value 10 is a number without quotes.

5fill in blank

hard

Fill all three blanks to create an associative array with keys 'first', 'second', 'third' and values 1, 2, 3.

PHP

$numbers = array([1] => [2], [3] => 3);

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

A'first'

B1

C'second'

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting string keys.

Quoting numeric values.

Keys must be strings with quotes, and values are numbers without quotes.