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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-5 section-1

41
What will be the output of the following PHP code? 
<?php
    echo ucwords("i love my country");
?>
Discuss
Answer & Solution
Answer: Option D
Solution:
The ucwords() function converts the first character of each word in a string to uppercase.
42
What will be the output of the following PHP code? 
<?php
    echo lcfirst("welcome to India");
?>
Discuss
Answer & Solution
Answer: Option A
Solution:
The lcfirst() function converts the first character of a string to lowercase.
43
What will be the output of the following PHP code? 
<?php
    echo hex2bin("48656c6c6f20576f726c6421");
?>
Discuss
Answer & Solution
Answer: Option A
Solution:
The hex2bin() function converts a string of hexadecimal values to ASCII characters.
44
What will be the output of the following PHP code? 
<?php 
    $str = addslashes('What does "yolo" mean?');
    echo($str); 
?>
Discuss
Answer & Solution
Answer: Option C
Solution:
The addslashes() function returns a string with backslashes in front of predefined characters.
45
What will be the output of the following PHP code? 
<?php
    $str = "Hello world. It's a beautiful day.";
    print_r (explode(" ",$str));
?>
Discuss
Answer & Solution
Answer: Option B
Solution:
The explode() function breaks a string into an array.
46
What will be the output of the following PHP code? 
<?php
  echo strtr("Hilla Warld","ia","eo");
?>
Discuss
Answer & Solution
Answer: Option B
Solution:
The strtr() function translates certain characters in a string.
47
What will be the output of the following PHP code? 
<?php
    echo stripos("I love php, I love php too!","PHP");
?>
Discuss
Answer & Solution
Answer: Option B
Solution:
The stripos() function finds the position of the first occurrence of a string inside another string.
48
What will be the output of the following PHP code ? 
<?php
function A1($x)
{
  switch($x)
  {
  case 1: 
    //this statement is the same as if($x == 1)
    echo 'Case 1 was executed.';
    break;
  case 2: 
    //this statement is the same as if($x == 2)
    echo 'Case 2 was executed.';
    break;
  case 3: 
    //this statement is the same as if($x == 3)
    echo 'Case 3 was executed.';
    break;
  case 4: 
    //this statement is the same as if($x == 4)
    echo 'Case 4 was executed.';
    break;
  default: 
    //this statement is the same as if $x does not equal the other conditions
    echo 'Default was executed.';
    break;
  }
}
A1(9);
?>
Discuss
Answer & Solution
Answer: Option D
Solution:
The switch statement is executed with $x = 9.
49
What will be the output of the following PHP code ? 
<?php
    function uppercase($string)
    {
        echo ucwords($string);
    }
    $wow = "uppercase";
    $wow("Time to live king size");
?>
Discuss
Answer & Solution
Answer: Option D
Solution:
The ucwords() function converts the first character of each word in a string to uppercase.
50
What will be the output of the following PHP code ? 
<?php
function TV($string)
{
    echo "my favourite TV show is ".$string;
    function b()
    {
       echo " I am here to spoil this code";
    }
}
b();
?>
Discuss
Answer & Solution
Answer: Option B
Solution:
b is undeclared if TV() is not called first.