Write a PHP program to calculate area of rectangle

Description: Write a PHP program to calculate the area of a rectangle using a PHP function.

Rules and hints:

• You must use a function.
• The function should have two arguments: length and width.

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PHP program to calculate the area of a rectangle

<?php
function rectArea($length, $width) {
    return $length * $width;
}

$length = 2;
$width = 4;

echo "Area of rectangle with length " . $length . " and width " . $width . " is " . rectArea($length, $width);
?>

Output:

How it works

• The function multiplies the length with the width and returns the result.
• We print the text and the returned value together with the dot operator.

Try this too

• Give default values to the parameters, like function rectArea($length = 2, $width = 4), and call it without arguments.
• Write a similar function for the area of a circle using M_PI.

• Previous Exercise
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