试图通过一封电子邮件获取一组数据，而不是多封

I have an issue where when I submit the record with 4 orders it sends 4 emails I need assistance in getting the items to all go in one email not an email for each individual item. I will keep trying to figure it out and help would be appreciated. I also know the code needs to be written in a prepared statement I will be changing it after I figure this out. I have an issue where when I submit the record