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Arrays MCQ question and answer with solution | PHP Programming

Learn Arrays MCQ Questions and answers with easy and logical explanations. Arrays MCQ in PHP programming provides all type of technical mcq questions which is important for technical exams, cumpus exams and other entrance examination

1
PHP’s numerically indexed array begin with position ______.
Discuss
Answer & Solution
Answer: Option C
Solution:
Like many programming languages, the first element of an array has an index value of 0.
2
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”);
Discuss
Answer & Solution
Answer: Option A
Solution:
A variable name should start with $ symbol which is not present in i) and you need not put the square brackets when you use the array() constructor.
3
What will be the output of the following php code? 
<?php
$states = array("karnataka" => array( "population" => "11,35,000", "captial" => "Bangalore"),"Tamil Nadu" => array( "population" => "17,90,000","captial" => "Chennai") );
echo $states["karnataka"]["population"];
?>
Discuss
Answer & Solution
Answer: Option B
Solution:
Treat states as a multidimensional array and accordingly traverse it to get the value.
4
Which function will return true if a variable is an array or false if it is not?
Discuss
Answer & Solution
Answer: Option B
Solution:
A built-in function, is_array(), is available for testing an array. Its prototype follows: boolean is_array(mixed variable).
5
Which in-built function will add a value to the end of an array?
Discuss
Answer & Solution
Answer: Option D
Solution:
array_push adds a value to the end of an array, returning the total count of elementsin the array after the new value has been added.
6
What will be the output of the following PHP code? 
<?php
$state = array ("Karnataka", "Goa", "Tamil Nadu", "Andhra Pradesh");
echo (array_search ("Tamil Nadu", $state) );
?>
Discuss
Answer & Solution
Answer: Option D
Solution:
The array_search() function searches an array for a specified value, returning its key if located and FALSE otherwise.
7
What will be the output of the following PHP code? 
<?php
$fruits = array ("apple", "orange", "banana");
echo (next($fruits));	
echo (next($fruits));
?>
Discuss
Answer & Solution
Answer: Option A
Solution:
The next() function returns the array value residing at the position immediately following that of the current array pointer.
8
Which function can be used to move the pointer to the previous array position?
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
9
What will be the output of the following PHP code? 
<?php
$fruits = array ("apple", "orange", array ("pear", "mango"), "banana");
echo (count($fruits, 1));
?>
Discuss
Answer & Solution
Answer: Option D
Solution:
The array entity holding pear and mango is counted as an item, just as its contents are.
10
Which function returns an array consisting of associative key/value pairs?
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board