PHP MCQs with answers Page - 29

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Q. What is the difference between Indexed array and Associative array in PHP?

  • (A) Index array has numeric index while associative array has named keys
  • (B) Index array has numeric index while associative array has named keys and numeric index both
  • (C) Index array is one-dimensional array with numeric index while associative array is two-dimensional array with numeric index
  • (D) Index array has numeric index while associative array has one or more arrays

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Q. Which is the correct example of an Indexed array in PHP?

  • (A) $cities = array("Delhi"; "Mumbai"; "Banglore");
  • (B) $cities = array("Delhi", "Mumbai", "Banglore");
  • (C) $cities = new array("Delhi", "Mumbai", "Banglore");
  • (D) $cities = new array(3) ("Delhi", "Mumbai", "Banglore");

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Q. 111. Which is the correct example of an Associative array in PHP?

  • (A) $person = array("Alvin"=>"Delhi", "Alex"=>"Mumbai", "Bhavik"=>"Banglore");
  • (B) $person = array("Alvin"=>"Delhi"; "Alex"=>"Mumbai"; "Bhavik"=>"Banglore");
  • (C) $person = new array("Alvin"=>"Delhi", "Alex"=>"Mumbai", "Bhavik"=>"Banglore");
  • (D) $person = new array("Alvin"=>"Delhi"; "Alex"=>"Mumbai"; "Bhavik"=>"Banglore");

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Q. Which PHP function(s) is/are used to compare arrays and returns the differences?

  • (A) array_diff()
  • (B) array_diff_assoc()
  • (C) array_diff_key()
  • (D) All of the above

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Q. What is the difference between array_diff() and array_diff_assoc() functions?

  • (A) array_diff() compares the values only while array_diff_assoc() compares the keys only
  • (B) array_diff() compares the values only while array_diff_assoc() compares the keys and values
  • (C) Both functions can be used to compare the values and keys
  • (D) None of the above

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Q. Which PHP function is used to sort multi-dimensional arrays?

  • (A) array_sort()
  • (B) sort()
  • (C) multisort()
  • (D) array_multisort()

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Q. What is the use of PHP sort() function?

  • (A) Sorts an indexed array
  • (B) Sorts an associative array
  • (C) Sorts a multi-dimensional array
  • (D) Sorts any kind of array

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Q. Which PHP function is used to sort an indexed array in descending order?

  • (A) sort_reverse()
  • (B) reverse_sort()
  • (C) revsort()
  • (D) rsort()

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Q. Which PHP function is used to return the current element in an array?

  • (A) get()
  • (B) start()
  • (C) current()
  • (D) cur()

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Q. Which PHP function is used to check if a specified value exists in an array?

  • (A) in_array()
  • (B) check_array()
  • (C) exist()
  • (D) None of the above

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