find the surface area of a rectangular prism in php

main.php
Surface Area of Rectangular Prism = 2*(length*width + width*height + height*length)
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main.php
function surfaceAreaRectangularPrism($length, $width, $height) {
    $surfaceArea = 2 * ($length * $width + $width * $height + $height * $length); 
    return $surfaceArea;
}
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main.php
// Example usage
$length = 5;
$width = 3;
$height = 2;

$surfaceArea = surfaceAreaRectangularPrism($length, $width, $height);
echo "Surface area of rectangular prism with length $length, width $width, and height $height is $surfaceArea.";
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main.php
Surface area of rectangular prism with length 5, width 3, and height 2 is 62.
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