PHP Functions MCQs

This section focuses on "Functions" 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 functions are available in php?

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

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2. Which of the following is not a built-in function in php ?

A. print_r()
B. fopen()
C. fclosed()
D. gettype()

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3. Why should we use functions?

A. Reusability
B. Easier error detection
C. Easily maintained
D. All of the above

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4. A function name always begins with the keyword _________.

A. fun
B. def
C. function
D. None of the above

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5. A function name cannot start with a ____

A. alphabet
B. underscore
C. number
D. Both C and B

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6. A function name is not case-sensitive?

A. True
B. False
C. Only user-defined function is case-sensitive
D. None of the above

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7. A function name is not case-sensitive?

<?php 
  
function funclfc()  
{ 
    echo "This is letsfindcourse"; 
} 
  
// Calling the function 
funclfc(); 
  
?>

A. This is lfc
B. This is letsfindcourse
C. No Output
D. Error

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8. A function name is not case-sensitive?

<?php 

function prolfc($num1, $num2, $num3)  
{ 
    $mul = $num1 * $num2 * $num3; 
    echo "The product is $mul"; 
} 


prolfc(1, 2, 3, 4); 
  
?>

A. 24
B. 8
C. 6
D. Error: to many argument.

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9. Type Hinting was introduced in which version of PHP?

A. PHP 5.1
B. PHP 5
C. PHP 5.3
D. PHP 5.4

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10. A function in PHP which starts with double underscore is known as __________.

A. Magic Function
B. Inbuilt Function
C. Default Function
D. User Defined Function

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