<?php

function promobuff2str($price_buff, $count_buff) {
	if ($count_buff == 1) return ((1-$price_buff)*100)."% korting";
	if ($count_buff <= 4) {
		for ($i = $count_buff-1; $i > 0; $i--)
			if (abs((($i/$count_buff)-$price_buff)/$price_buff) < 0.001)
				return $i."+".($count_buff - $i)." gratis";
	}
	return ((1-$price_buff)*100)."% korting per ".$count_buff."-pack";
}

?>