/*  calculates a fragzone game rating from 0 to 100 depending on a 0-5 star review system
    @ input: an array of review values from 0-5
    @ output: a value from 0 to 100
*/

function calc_fragzone_game_score($array_of_reviews)
{
    $total = 0;
    foreach ($array_of_reviews as $value)
    {
        $total += $value * 20;
    }
    return $total/count($array_of_reviews);
}