PHP Arrays Quiz

What do arrays in PHP combine the characteristics of?

• Lists and objects

• Regular arrays and hashes

• Strings and integers

• Functions and variables

How can elements in a PHP array be indexed?

• By functions only

• Numerically only

• By strings only

• Both numerically and by strings

Are elements in a PHP array maintained in any particular order?

• Yes, always in ascending order

• Yes, always in descending order

• No, they are not maintained in any particular order

• Only when indexed by strings

Conceptually, what are the elements of an array in PHP?

• Key/value pairs

• Value/value pairs

• Key/key pairs

• Index/index pairs

Which of the following is a way to create an array in PHP?

• By using the 'list' function

• By assigning a value to an element of an array

• By declaring a variable without initializing it

• By using the 'object' keyword

What PHP function is used to create an array as shown in the learning material?

• create()

• new_array()

• array()

• collect()

How is a numerically indexed array created in PHP as per the example in the learning material?

• $mixed = array('23', 'xiv', 'bob', '777')

• $mixed = array(23, 'xiv', 'bob', 777)

• $mixed = [23, 'xiv', 'bob', 777]

• $mixed = {23, 'xiv', 'bob', 777}

How do you create an array with string indexes in PHP according to the example provided?

• $fruits = array('a' => 'apple', 'b' => 'banana', 'k' => 'kiwi', 'o' => 'orange')

• $fruits = ['a' => 'apple', 'b' => 'banana', 'k' => 'kiwi', 'o' => 'orange']

• $fruits = {'a': 'apple', 'b': 'banana', 'k': 'kiwi', 'o': 'orange'}

• $fruits = (a: 'apple', b: 'banana', k: 'kiwi', o: 'orange')

What is the correct syntax to create a numerically indexed array in PHP?

• $mixed = array(23, 'xiv', 'bob', 777)

• $mixed = [23, 'xiv', 'bob', 777]

• $mixed = (23, 'xiv', 'bob', 777)

• $mixed = {23, 'xiv', 'bob', 777}

What will be the value of $mixed[1] based on the array creation statement provided?

• 23

• 'xiv'

• 'bob'

• 777