jQuery Forum

      You can use ajax to communicate to the server, and when you get a response, use setTimeout to do it again  after a short time. With ajax, everything is still started off by the client.

      I would use web sockets, but using PHP with web sockets is not the simplest thing.  With web sockets, you can push info to the client whenever you like.

JΛ̊KE

First, what do you mean by "app"? Do you mean a native hybrid app, like using PhoneGap/Cordova?

I don't see PHP (or any server language) as very useful for a reminder app. It might play a minimal role, by providing a place to store reminder data and perhaps share it between devices. Of course, this would be duplicating the reminder apps that nearly everybody already has built-in to their phones and tablets.

It wouldn't make much sense to have PHP do the "reminding". That should be done locally. Yes, you could use a websocket or polling, but it just doesn't make sense to maintain a connection to do something that is best done locally.

You might use PHP and a database to store the reminders, and sync to a device or devices.

But you might also just use localstorage, a SQLite database in PhoneGap, etc. And iOS (and I presume Android) apps can back-up their data (e.g. the SQLite database) to iCloud, etc.

@Jon , yes you are right , this app would make more sense as an android app , infact there already exists an app on android like the one i want to build HERE. 

Now i need to build this app as a webapp , so basically as of now it works like so:

- User enters task and time to remind .

- The app saves it (using localstorage / database etc ... as of now i am using localstorage) .

- The app sends a reminder in the form of an HTML5 notification. 

One major disadvantage is that the user has to keep the tab open all the while (this can have a work around in the future.)

The thing is , i am building this app for my co. for internal purposes and the audience is limited to 4-5 people .. thats it . hence the weird requirement.

@Jake , i will check out websockets and comeback.

Thank you.

Gautam