# Welcome to the Functions in PHP MCQs Page

Dive deep into the fascinating world of Functions in PHP with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Functions in PHP, a crucial aspect of PHP. In this section, you will encounter a diverse range of MCQs that cover various aspects of Functions in PHP, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within PHP.

Check out the MCQs below to embark on an enriching journey through Functions in PHP. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of PHP.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Functions in PHP. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

### Functions in PHP MCQs | Page 2 of 6

Q11.
What will be the output of the following PHP code?
<?php
function sum($num1,$num2)
{
$total =$num1 + $num2; echo "cos($total)";
}
sum(5,-5);
?>
Q12.
What will be the output of the following PHP code?
<?php
function b()
{
echo "b is executed";
}
function a()
{
b();
echo "a is executed";
b();
}
a();
?>
Answer: (d).b is executeda is executedb is executed
Q13.
What will be the output of the following PHP code?
<?php
function sum($x,$y)
{
$z =$x + $y; return$z;
}
echo "5 + 10 = " . sum(7,13) . "<br>";
echo "7 + 13 = " . sum(2,4) . "<br>";
echo "2 + 4 = " . sum(5,10);
?>
Answer: (d).5 + 10 = 20
7 + 13 = 6
2 + 4 = 15
Q14.
What will be the output of the following PHP code?
<?php
function addFive($num) {$num += 5;
}
function addSix(&$num) {$num += 6;
}
$orignum = 10; addFive( &$orignum );
echo "Original Value is $orignum<br />"; addSix($orignum );
echo "Original Value is $orignum<br />"; ?> Answer: (b).Original Value is 15 Original Value is 21 Q15. What will be the output of the following PHP code? <?php function addFunction($num1, $num2) {$sum = $num1 +$num2;
return $sum; }$return_value = addFunction(10, 20);
echo "Returned value from the function : $return_value" ?> Answer: (c).Returned value from the function : 30 Q16. What will be the output of the following PHP code? <?php function sayHello() { echo "HelloWorld<br />"; }$function_holder = "sayHello";
$function_holder(); ?> Answer: (d).HelloWorld Q17. What will be the output of the following PHP code? <?php function one() { echo " this works"; function two() { echo "this too works"; } } one(); two(); ?> Answer: (c).this worksthis too works Q18. What will be the output of the following PHP code? <?php function do($myString)
{
echo strpos($myString, "donkey",0); } do("The donkey looks like a horse."); ?> a. 4 b. 5 c. 2 Answer: (a).4 Q19. What will be the output of the following PHP code? <?php function one() { define("const","I am awesome!"); echo constant("const"); } one(); ?> Answer: (a).I am awesome!! Q20. What will be the output of the following PHP code? <?php$title = "O'malley wins the heavyweight championship!";
echo ucwords(\$title);
?>
Answer: (d).o’malley wins the heavyweight championship!
Page 2 of 6

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