public static function createDays($schId) { $db = Database::getInstance(); $weekId = Week::getLastId(); $schedule = Schedule::getSchedule($schId); $sql = "INSERT INTO day (weekId, startTime, shiftDate) VALUES (:weekId, :startTime, :shiftDate)"; for ($i = 0; $i < 7; $i++) { $shift = date('Y-m-d', strToTime("+" . $i . " days", strToTime($schedule['startDate']))); $result = $db->prepare($sql); $result->execute(array(":weekId" => $weekId, ":startTime" => null, ":shiftDate" => $shift)); } }