PHP Array MCQs

PHP Array MCQs : This section focuses on "Array" in PHP. These Multiple Choice Questions (mcq) should be practiced to improve the PHP skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.

1. How many types of array are available in php?

A. 1
B. 2
C. 3
D. 4

View Answer

2. By default, the index of array in php starts from ______?

A. 0
B. 1
C. -1
D. 2

View Answer

3. A ________ is an array with more than two dimensions.

A. single dimensional array
B. multi dimensional array
C. Both A and B
D. None of the above

View Answer

4. Which of the following are correct ways of creating an array?
i) arr[0] = "letsfindcourse";
ii) $arr[] = array("letsfindcourse");
iii) $arr[0] = "letsfindcourse";
iv) $arr = array("letsfindcourse");

A. ii), iii) and iv)
B. ii) and iii)
C. Only i)
D. iii) and iv)

View Answer

5. Which in-built function will add a value to the end of an array?

A. array_unshift()
B. into_array()
C. inend_array()
D. array_push()

View Answer

6. Which function returns an array consisting of associative key/value pairs?

A. count()
B. array_count()
C. array_count_values()
D. count_values()

View Answer

7. What will be the output of the following PHP code?

<?php
    $arr = array ("lets", "find", "course", ".Com");
    echo (array_search (".com", $arr) );
?>

A. 0
B. Garbage value
C. 3
D. No Output

View Answer

8. As compared to associative arrays vector arrays are much

A. Faster
B. Slower
C. Stable
D. None of the above

View Answer

9. What is the output of the following php code?

<?php
 $alphabet = array ("A", "B", "C");
 echo (next($alphabet));
 ?>

A. A
B. B
C. C
D. Error

View Answer

10. What is the output of the following php code?

<?php
 $alphabet  = array("A" => array
 ( "php" => "php 7.0", "date" => "3 December 2019"),
 "B" => array( "python" => "python 3.8.2",
 "date" => "24 December 2019") );
 echo $alphabet ["A"]["date"];
 ?>

A. php 7.0
B. 3 December 2019
C. python 3.8.2
D. 24 December 2019

View Answer

11. Keys in array can be non-sequential.

A. True
B. False
C. Depend on program
D. Keys does not exist in array

View Answer

12. Key/value pair can be initialized using = operator?

A. True
B. False
C. Depend on program
D. Keys does not exist in array

View Answer

13. What is the use of is_array() function?

A. Function is used to print the array in readable format.
B. Adds elements to the beginning of the array and returns the size of array.
C. Function can be used to verify if a variable is an array. Returns TRUE or FALSE
D. Adds elements to the end of the array and returns the size of array.

View Answer

14. What is the use of array_unshift() function?

View Answer

15. What is the use of array_flip() function?

A. Rearranges the array elements in the reverse order
B. Is used to convert the keys to values and values to keys.
C. Can be used to fetch the keys present in the array
D. Returns number of elements in the array

View Answer

16. What is the use of array_values() function?

A. Returns all the values of the respective keys present in the passed array
B. Returns number of elements in the array
C. Can be used to fetch the keys present in the array
D. Returns the values and the frequency of each value in form of an array.

View Answer

17. Predict the output of the following code.

<?php

$a=array(1,2,3,5,6);
next($a);
next($a);
next($a);
echo current($a);

?>

A. 2
B. 3
C. 4
D. 5

View Answer

18. Predict the output of the following PHP code.

<?php

$fruits = array ("apple", "orange", "banana", "guava", "pine-apple", "papaya", "melon");
next($fruits);
next($fruits);
prev($fruits);

?>

A. guava
B. banana
C. orange
D. pine-apple

View Answer

19. Which of the following function is used to get the value of the previous element in an array?

A. last()
B. before()
C. prev()
D. previous()

View Answer

20. Which of the following function is Used to set the array pointer to the value of last key?

A. last()
B. end()
C. next()
D. final()

View Answer

Also check :

PHP Basics MCQ

Discussion