Hello everyone,

I'm new on the forum, where I think people can help me figure out my question.
I'm coding an agenda where user can enter events, manage these events by date, time...etc all done using PHP (Cake Framework).
My question is about reminders for events, I'd like to install an alarm system via pop-up and email when the user define a reminder for an event.

I'd like to know if someone already figured this situation out, which way to use to manage reminders.

I was thinking to record every reminder in a database then execute a script via cronjob which one will send email, but the cron should launch the script every 5 minutes, I'm not sure it's the right solution, and about the popup, how can I display a popup when the user log on the application to remind him/her about the event...

Thanks for your help,