function kurz($cena) { global $db; $b1=mysqli_query($db,"SELECT * FROM pracovni.kurz order by id desc limit 1"); $kurz = mysqli_fetch_assoc($b1); $cena=round($cena/$kurz["euro"],2); return $cena; } function nastav_datum_minus($newdate){ $date = new DateTime($newdate); $date->modify("-21 day"); return $date->format("Y-m-d"); } function nastav_datum($newdate){ $date = new DateTime($newdate); $date->modify("+21 day"); return $date->format("Y-m-d"); } function posta($postovne,$totalcena,$minobj) { if ($totalcena>$minobj or $totalcena==0) $postovne=0; return $postovne; }