<?php
class Constants
{
    define('MIN_VA', '10.10');  
    define('MAX_VAL', '20.20');  
    public static function getMin()
    {
        return self::MIN_VAL;
    }
    public static function getMax()
    {
        return self::MAX_VAL;
    }
}
echo Constants::getMin();
echo Constants::getMax();
?>