Php Arrays(Engineering > Computer Science And Engineering > Php ) Questions and answers for exam Preparation

Question 1. What will be the output of the following php code?$states = array("karnataka" => array( "population" => "11,35,000", "captial" => "Bangalore"),"Tamil Nadu" => array( "population" => "17,90,000","captial" => "Chennai") );echo $states["karnataka"]["population"];

population 11,35,000
karnataka population
karnataka 11,35,000
11,35,000

Explanation:-

Answer: Option D. -> 11,35,000

Question 2. Which in-built function will add a value to the end of an array?

array_unshift()
into_array()
inend_array()
array_push()

Explanation:-

Answer: Option D. -> array_push()

Question 3. Which function will return true if a variable is an array or false if it is not?

do_array()
is_array()
this_array()
in_array()

Explanation:-

Answer: Option B. -> is_array()

Question 4. Which of the following are correct ways of creating an array?1. state[0] = “karnataka”;2. $state[] = array(“karnataka”);3. $state[0] = “karnataka”;4. $state = array(“karnataka”);

2, 3 and 4
2 and 3
Only 1
3 and 4

Explanation:-

Answer: Option D. -> 3 and 4

Question 5. PHP’s numerically indexed array begin with position ______.

0
2
1
-1

Explanation:-

Answer: Option A. -> 0

Question 6. Which function can be used to move the pointer to the previous array position?

before()
last()
prev()
previous()

Explanation:-

Answer: Option C. -> prev()

Question 7. What will be the output of the following PHP code?$fruits = array ("apple", "orange", "banana");echo (next($fruits));echo (next($fruits));

orangeorange
appleapple
orangebanana
appleorange

Explanation:-

Answer: Option C. -> orangebanana

Question 8. What will be the output of the following PHP code?$state = array ("Karnataka", "Goa", "Tamil Nadu", "Andhra Pradesh");echo (array_search ("Tamil Nadu", $state) );

1
2
True
False

Explanation:-

Answer: Option B. -> 2

Question 9. What will be the output of the following PHP code?$fruits = array ("apple", "orange", array ("pear", "mango"), "banana");echo (count($fruits, 1));

4
3
5
6

Explanation:-

Answer: Option D. -> 6

Question 10. Which function returns an array consisting of associative key/value pairs?

array_count_values()
count_values()
count()
array_count()

Explanation:-

Answer: Option A. -> array_count_values()