PHP ARRAYS QUIZ

orangeorange

appleorange

orangebanana

appleapple

array_key_exist()

array_key_exists()

arrays_key_exists()

array_keys_exists()

No

Yes, because PHP must monitor the execution of the function to determine if changes are made to the array.

Yes, but only if the array is large.

Yes, but only if the function modifies the contents of the array.

Yes, because the interpreter must always create a copy of the array before passing it to the function.

arrays_diff

array_diff

diff_array

diff_arrays

Array ( [0] => red [1] => green [2] => blue [3] => yellow )

Array ( [0] => red [1] => green )

Array ( [0] => blue [1] => yellow [2] => red [3] => green )

Array ( [0] => blue [1] => yellow )

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )

Array ( Peter Ben Joe )

Array ( [35] => Peter [37] => Ben [43] => Joe )

Array ( 35 37 43 )

count()

array_count()

array_count_values()

count_values()

Array ( [0] => A [1] => J [2] => Q [3] => K [4] => 2 [5] => 3 [6] => 4 [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 )

Array ( [0] => A [1] => 2 [2] => J [3] => 3 [4] => Q [5] => 4 [6] => K [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 )

Error

Array ( [0] => 2 [1] => 3 [2] => 4 [3] => 5 [4] => 6 [5] => 7 [6] => 8 [7] => 9 [8] => 10 [9] => A [10] => J [11] => Q [12] => K )

4

6

5

3

Option 2 and 4

Option 3 and 4

Option 1 and 2

Option 1 and 4