I am developing a Web Application for businesses to track the status of their repairs & part orders that is running on LAMP (Linux Apache MySQL PHP). I just need some input as to how I should go about allowing users to customize the frequency of email notifications.
Currently, I just have a cron job running every Monday at 6:00AM that runs a php script that sends an email to each user of their un-processed jobs. But I would like to give users the flexibility of not only choosing the time they are sent at, but the days of the week as well.
One idea I had was, some way or another, storing their email notification preferences in a MySQL database, and then writing a php script to notify via email but only if the current date/time fits within the criteria they have set & write in code to prevent it from being sent twice within the same cycle. Then I could just run the cron job every minute or 5 or whatever.
Or would it be better to somehow create individual cron jobs for each user programatically via php?
Any input would be greatly appreciated! :)