PHP MCQ Questions with answers and solutions Page 31

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

💬 Discuss

✅ Correct Answer: (D) All of the above

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:33 am in PHP

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

💬 Discuss

✅ Correct Answer: (B) array_diff() compares the values only while array_diff_assoc() compares the keys and values

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:34 am in PHP

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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✅ Correct Answer: (D) array_multisort()

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:35 am in PHP

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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✅ Correct Answer: (A) Sorts an indexed array

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:36 am in PHP

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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✅ Correct Answer: (D) rsort()

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:37 am in PHP

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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✅ Correct Answer: (C) current()

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:37 am in PHP

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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✅ Correct Answer: (A) in_array()

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:38 am in PHP

Q. Which PHP function is used to sort an associative array in descending order, according to the key?

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

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✅ Correct Answer: (D) krsort()

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:39 am in PHP

Q. Which PHP function is used to get one or more random keys from an array?

(A) array_random()
(B) array_randomize()
(C) array_rand()
(D) krand()

💬 Discuss

✅ Correct Answer: (C) array_rand()

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:39 am in PHP

Q. Which is not a valid PHP superglobal variable?

(A) $GLOBALS
(B) $_SERVER
(C) $_ENV
(D) $_SESSIONS

💬 Discuss

✅ Correct Answer: (D) $_SESSIONS

Published by Ram Sharma ⭐ 193.88K Points at 19-Jun-2022 11:40 am in PHP

PHP MCQs with answers Page - 31

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

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

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

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

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

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

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

Q. Which PHP function is used to sort an associative array in descending order, according to the key?

Q. Which PHP function is used to get one or more random keys from an array?

Q. Which is not a valid PHP superglobal variable?

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