admin-promo done

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/promo.php b/lib/promo.php
new file mode 100644
index 0000000..ae200fa
--- /dev/null
+++ b/lib/promo.php
@@ -0,0 +1,13 @@
+<?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";
+}
+
+?>