PHP Functions Easy Questions and Answers

What will be the output of the following PHP code ?

<?php
$num = 120;
function calc()
    {
        echo $num;
    }
calc();
?>

Correct Option: A

$num is not global and hence is not available for calc().

What will be the output of the following PHP code ?

<?php
function str($Message)
    {
        $Message = ucwords($Message);
        echo lcfirst($Message);
    }
str("this is important...");
?>

Correct Option: A

ucwords() changes all the first letters to capitals. lcfirst() changes first letter of a string to small.

<?php
function car()
{ 
    $car = array("Jeep", "Datsun", "Lada", "spyker"); 
    foreach ($car as $val)
    {
        echo "$val\n";
    }
}
car();
?>

Correct Option: A

For each function causes the program to loop through each array value once.

What will be the output of the following PHP code ?

<?php
function SumFun($number1, $number2)
{
    $s = $number1 + $number2;
    return $s;
}
$return_val = SumFun(15, 45);
echo "Returned value : " .$return_val
?>

Correct Option: A

Returned value : 60

What will be the output of the following PHP code ?

<?php
function fun($str)
{
    echo strtr("Towe Pa55", "ow5", $str);
}
fun("ims");
?>

Correct Option: A

The strtr() function translates certain characters in a string.