PHP Quiz (Set 9) - Upskilling Engineers

PHP (Set 9)

1 / 10

What is the purpose of the 'array_unique()' function when used with a multidimensional array in PHP?

To remove duplicate values from each subarray

To remove duplicate subarrays

To reverse the order of subarrays

To remove duplicate values from the entire multidimensional array

2 / 10

What is the purpose of the 'array_sum()' function in PHP?

To calculate the product of all elements in an array

To find the largest element in an array

To calculate the sum of all elements in an array

To find the average of all elements in an array

3 / 10

What is the purpose of the 'array_reverse()' function when used with a multidimensional array in PHP?

To reverse the order of elements in each subarray

To reverse the order of subarrays

To sort the subarrays in descending order

To flatten the multidimensional array

4 / 10

What is the purpose of the 'array_rand()' function in PHP?

To find the index of a random element in an array

To retrieve a random element from an array

To shuffle the elements of an array

To sort an array in ascending order

5 / 10

What is the purpose of the 'array_diff()' function in PHP?

To find the difference between two arrays

To combine two arrays into a single array

To merge two arrays and remove duplicates

To remove the last element from an array

6 / 10

What is the purpose of the 'array_values()' function in PHP?

To retrieve the keys of an array

To retrieve the values of an array

To reverse the order of elements in an array

To sort the values of an array

7 / 10

Which PHP function is used to get the number of elements in an array?

array_length()

count()

length()

size()

8 / 10

What is the purpose of the 'array_intersect()' function in PHP?

To find the intersection of multiple arrays

To combine two arrays into a single array

To merge two arrays and remove duplicates

To remove the last element from an array

9 / 10

What is the purpose of the 'array_combine()' function in PHP?

To combine two arrays into a single array

To merge two arrays and remove duplicates

To create a new array by using one array for keys and another for values

To reverse the order of elements in an array

10 / 10

What is the purpose of the 'array_push()' function in PHP?

To add a new key-value pair to an array

To remove the last element from an array

To add one or more elements to the end of an array

To merge two arrays into a single array

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