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Arrays MCQs

Practice Arrays MCQs for competitive exams.

Arrays MCQs

Practice questions from this topic.

What array will you get if you convert an object to an array?

  1. A. An array with properties of that object as the array's elements
  2. B. An array with properties of that array as the object's elements
  3. C. An array with properties of that object as the Key elements
  4. D. An array with keys of that object as the array's elements
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What functions count elements in an array? 1. count 2. Sizeof 3. Array_Count 4. Count_array

  1. A. Option 2 and 4
  2. B. Option 1 and 2
  3. C. Option 3 and 4
  4. D. Option 1 and 4
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What function computes the difference of arrays?

  1. A. array_diff
  2. B. diff_array
  3. C. arrays_diff
  4. D. diff_arrays
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Assume you would like to sort an array in ascending order by value while preserving key associations. Which of the following PHP sorting functions would you use?

  1. A. ksort()
  2. B. asort()
  3. C. krsort()
  4. D. sort() E. usort()
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There are three different kind of arrays:

  1. A. Numeric array, String array, Multidimensional array
  2. B. Numeric array, Associative array, Dimensional array
  3. C. Numeric array, Associative array, Multidimensional array
  4. D. Const array, Associative array, Multidimensional array
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Which array function checks if the specified key exists in the array?

  1. A. array_key_exist()
  2. B. array_key_exists()
  3. C. array_keys_exists()
  4. D. arrays_key_exists()
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What will the following script output? <?php $array = array (1, 2, 3, 5, 8, 13, 21, 34, 55); $sum = 0; for ($i = 0; $i

  1. A. 78
  2. B. 19
  3. C. NULL
  4. D. 5
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Which function returns an array consisting of associative key/value pairs?

  1. A. count()
  2. B. array_count()
  3. C. array_count_values()
  4. D. count_values()
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Which function can be used to move the pointer to the previous array position?

  1. A. last()
  2. B. before()
  3. C. prev()
  4. D. previous()
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Which in-built function will add a value to the end of an array?

  1. A. array_unshift()
  2. B. into_array()
  3. C. inend_array()
  4. D. array_push()
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Which function will return true if a variable is an array or false if it is not?

  1. A. this_array()
  2. B. is_array()
  3. C. do_array()
  4. D. in_array()
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What will be the output of the following php code? array( "population" => "11,35,000" , "captial" => "Bangalore" ) , "Tamil Nadu" => array( "population" => "17,90,000" , "captial" => "Chennai" ) ) ; echo $states [ "karnataka" ][ "population" ] ; ?>

  1. A. karnataka 11,35,000
  2. B. 11,35,000
  3. C. population 11,35,000
  4. D. karnataka population
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