Question 1

The array_key_exists() function determines whether a given index or key exists.

Accepted Answer

A) True 
 B)False

Question 2

You use the array_unshift() function to remove the first element from the beginning of an array.

Accepted Answer

A) True 
 B)False

Question 3

The ____ function returns an array of elements that exist in one array but not in any other arrays to which it is compared.

Accepted Answer

A)  array_compare() 
B)  array_diff() 
C)  array_search() 
D)  array_match()

Question 4

The array_unique() function removes ____________________ elements from an array.

Accepted Answer

The answer of The array_unique() function removes ____________________ elements from...

Question 5

The____________________ function returns a Boolean value of TRUE if a given value exists in an array.

Accepted Answer

The answer of The____________________ function returns a Boolean value of...

Question 6

The array_diff() function returns an array of elements that exist in one array but not in any other arrays to which it is compared.

Accepted Answer

A) True 
 B)False

Question 7

You can create ____ that consist of multiple indexes or keys.

Accepted Answer

A)  indexed arrays 
B)  two-dimensional arrays 
C)  multidimensional arrays 
D)  key arrays

Question 8

You use the ____ function to return a portion of an array and assign it to another array.

Accepted Answer

A)  array_slice() 
B)  array_set() 
C)  array_assign() 
D)  array_key()

Question 9

You would use the ____________________ function t return an array of the elements that are common to all arrays that are compared.

Accepted Answer

The answer of You would use the ____________________ function t...

Question 10

You can use the unset() function to remove array elements and other variables.

Accepted Answer

A) True 
 B)False

Question 11

The array_shift() function removes the ____ element from the beginning of an array.

Accepted Answer

A)  last 
B)  first 
C)  second 
D)  middle

Question 12

The in_array() function returns a Boolean value of TRUE if a value exists in an array.

Accepted Answer

A) True 
 B)False

Question 13

Instead of appending one array to another you can merge two or more arrays with the array_merge() function.

Accepted Answer

A) True 
 B)False

Question 14

The array_values() function operates directly on an array.

Accepted Answer

A) True 
 B)False

Question 15

The array_unshift() function adds ____ element(s) to the beginning of the array.

Accepted Answer

A)  one or more 
B)  two or more 
C)  no new 
D)  only one

Question 16

The ____ function removes duplicate elements from an array.

Accepted Answer

A)  array_dup() 
B)  array_values() 
C)  array_unique() 
D)  array()

Question 17

To perform a reverse sort on an associative array by key and maintain the existing keys, use the _____ function.

Accepted Answer

A)  ksort() 
B)  krsort() 
C)  uk_sort() 
D)  sort()

Question 18

The ____________________ function moves the internal array pointer to the last element in an array.

Accepted Answer

The answer of The ____________________ function moves the internal array...

Question 19

Aside from its main function, the array_splice() function also renumbers the indexes in the array.

Accepted Answer

A) True 
 B)False

Question 20

Run the ____________________ function to renumber an indexed array's element.

Accepted Answer

The answer of Run the ____________________ function to renumber an...

Exam 6: Manipulating Arrays

The array_key_exists() function determines whether a given index or key exists.

You use the array_unshift() function to remove the first element from the beginning of an array.

The ____ function returns an array of elements that exist in one array but not in any other arrays to which it is compared.

The array_unique() function removes ____________________ elements from an array.

The____________________ function returns a Boolean value of TRUE if a given value exists in an array.

The array_diff() function returns an array of elements that exist in one array but not in any other arrays to which it is compared.

You can create ____ that consist of multiple indexes or keys.

You use the ____ function to return a portion of an array and assign it to another array.

You would use the ____________________ function t return an array of the elements that are common to all arrays that are compared.

You can use the unset() function to remove array elements and other variables.

The array_shift() function removes the ____ element from the beginning of an array.

The in_array() function returns a Boolean value of TRUE if a value exists in an array.

Instead of appending one array to another you can merge two or more arrays with the array_merge() function.

The array_values() function operates directly on an array.

The array_unshift() function adds ____ element(s) to the beginning of the array.

The ____ function removes duplicate elements from an array.

To perform a reverse sort on an associative array by key and maintain the existing keys, use the _____ function.

The ____________________ function moves the internal array pointer to the last element in an array.

Aside from its main function, the array_splice() function also renumbers the indexes in the array.

Run the ____________________ function to renumber an indexed array's element.