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Functions MCQ question and answer with solution | PHP Programming

Learn Functions MCQ Questions and answers with easy and logical explanations. Functions MCQ in PHP programming provides all type of technical mcq questions which is important for technical exams, cumpus exams and other entrance examination Page-7 section-1

61
What will be the output of the following PHP code ? 
<?php
function test($int)
{
    if ($int == 1)
        echo "This Works";
    if ($int == 2)
        echo "This Too Seems To Work";
}
test(1);
TEST(2);
?>
Discuss
Answer & Solution
Answer: Option C
Solution:
Function Is case Insensitive.
62
What will be the output of the following PHP code ? 
<?php
function mine($num)
{
    $num = 2 + $num;
    echo $num;
}
mine(3);
?>
Discuss
Answer & Solution
Answer: Option C
Solution:
Simple arithmetic operation.
63
What will be the output of the following PHP code ? 
<?php
function mine($num)
{
    $num = 2 + $num;
    echo "$num";
}
mine(3);
?>
Discuss
Answer & Solution
Answer: Option B
Solution:
The function is defined as echo “$num”.This means $num is treated as a string and not as a variable.
64
What will be the output of the following PHP code ? 
<?php
function movie($int)
{
    $movies = array("Fight Club", "Kill Bill", "Pulp Fiction");
    echo "You Do Not Talk About ". $movie[$integer];
}
movie(0);
?>
Discuss
Answer & Solution
Answer: Option A
Solution:
Simple use of arrays.
65
What will be the output of the following PHP code ? 
<?php
function addFunction($num1, $num2)
{
    $sum = $num1 + $num2;
    return $sum;
}
$return_value = addFunction(10, 20);
echo "Returned value from the function : " .$return_value
?>
Discuss
Answer & Solution
Answer: Option C
Solution:
Function returns 30.
66
What will be the output of the following PHP code ? 
<?php
function time($string)
{
    echo strtr("Towe Pa55", "ow5", $string);
}
time("ims");
?>
Discuss
Answer & Solution
Answer: Option D
Solution:
The strtr() function translates certain characters in a string.
67
What will be the output of the following PHP code ? 
<?php
function constant()
{
    define("GREETING", "Welcome to Narnia");
    echo greeting;
}
?>
Discuss
Answer & Solution
Answer: Option D
Solution:
By default constants are case sensitive. Hence an error will arise.
68
What will be the output of the following PHP code ? 
<?php
function constant()
{
    define("GREETING", "Welcome to Narnia",true);
    echo greeting;
}
?>
Discuss
Answer & Solution
Answer: Option A
Solution:
By default constants are case sensitive. But the third parameter in define(), if set to true, makes constants case insensitive.
69
What will be the output of the following PHP code ? 
<?php
function start($string)
{
    if ($string < 45)
        return 20;
    else
        return 40;
}
$t = start(90);
if ($t < 20)
{
    echo "Have a good day!";
}
else
{
    echo "Have a good night!";
}
?>
Discuss
Answer & Solution
Answer: Option B
Solution:
Function returns 40. this is greater than 20, hence the output.
70
What will be the output of the following PHP code ? 
<?php
function email()
{
    $email = ’contact@examveda.com’;
    $new = strstr($email, ‘@');
    echo $new;
}
email();
?>
Discuss
Answer & Solution
Answer: Option C
Solution:
The strstr() function searches for the first occurrence of a string inside another string.