Question 1

What is an Associative Array in PHP?

Accepted Answer

A specific type of array that uses strings as keys instead of numerical indices

Answer

An array that only stores integers

Answer

An array that can only be accessed using a loop

Answer

An array that can only store strings

Question 2

What is the purpose of an associative array key in PHP?

Accepted Answer

To uniquely identify and access the corresponding value

Answer

To sort the array in ascending order

Answer

To specify the data type of the value

Answer

To determine the length of the array

Question 3

How do you add a new key-value pair to an existing associative array in PHP?

Accepted Answer

By assigning a value to a new key using the assignment operator (=)

Answer

By using the array_pop() function

Answer

By using the array_merge() function

Answer

By using the array_push() function

Question 4

What is the advantage of using an associative array over an indexed array in PHP?

Accepted Answer

An associative array allows for more descriptive and meaningful data access using customized string keys.

Answer

An associative array automatically sorts its elements in alphabetical order.

Answer

An associative array can store a larger number of elements compared to an indexed array.

Answer

An associative array provides faster element access than an indexed array.

Answer

An associative array has a smaller memory footprint compared to an indexed array.

Question 5

What is the syntax to access a value from an associative array in PHP?

Accepted Answer

Using the key within square brackets after the array variable

Answer

Using the index within square brackets after the array variable

Answer

Using the key within parentheses after the array variable

Answer

Using the value within parentheses after the array variable

Question 6

What is the purpose of the array_keys() function in PHP?

Accepted Answer

To retrieve all the keys from an associative array

Answer

To check if a specific key exists in an associative array

Answer

To sort the keys of an associative array

Answer

To retrieve all the values from an associative array

Question 7

What is the syntax to remove a key-value pair from an associative array in PHP?

Accepted Answer

By using the unset() function with the specific key

Answer

By using the array_pop() function

Answer

By using the array_shift() function

Answer

By reassigning a null value to the specific key

Related quizzes