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Advanced Array Functions Test Questions and Answers PDF Download: MCQ 4

MCQ: 16

Array_merge ( ) function merges

  1. Two arrays
  2. Three arrays
  3. More than three
  4. Merges array with a string
MCQ: 17

A function that takes an array and returns a new array, where old values are changed with new keys?

  1. array_keys ( )
  2. array_values ( )
  3. array_count_values
  4. None of them
MCQ: 18

For reversing an array which function is used?

  1. reverse ( ) function
  2. array_rev ( ) function
  3. array_reverse ( )
  4. change_array_order ( )
MCQ: 19

The side effect of array_pop ( ) function is

  1. It removes the first element of an array
  2. It removes last element of an array
  3. It modifies an array from middle
  4. All of them
MCQ: 20

A function that returns the keys of its input array in the form of new array where keys are stored as values, is a

  1. return_function ( )
  2. keys ( ) function
  3. implode ( ) function
  4. array_keys ( ) function

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