How to refresh the web page on all user's interface when some user make changes to that page?

Question

In my PHP application every user can see the task list. When a user deletes a task I'm able to refresh a page so that they will see the new task list, but that task is still seen by other users.

What I want is when user deletes a particular task, all users should get a fresh task list (update or refresh should happen).

What is the best way to do that? I'm also using my application iphone safari browser.

This question is asked 5 times a day, please check other questions (with useful answers) first. — Pieter, Jul 16 '13 at 22:18
@Pieter : I'm sorry but i searched on this before posting but didn't find answer. — S52, Jul 16 '13 at 22:20
@AmalMurali : Ajax which executes after every 5 seconds like that? Can you elaborate? — S52, Jul 16 '13 at 22:21
Sounds like a job for [long polling](http://stackoverflow.com/questions/15724055/) or [websockets](http://stackoverflow.com/questions/17336876/) — Stephen P, Jul 16 '13 at 23:39

score 0 · Answer 1 · answered Jul 16 '13 at 22:20

0

A simple way would be

Save a random string(token) on the Server and deliver it to every web page
Inside the web page run a js-script(Ajax), which ask the Server for the token - if a new token is returned, refresh the page
if you want to refresh all the pages, just set a new token

answered Jul 16 '13 at 22:20

Philipp

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Do you mean token for every task? – S52 Jul 16 '13 at 22:24
@sach: one general token for all, change it whenever a task changed – Jul 16 '13 at 22:24
@akram : What if two user tries to delete two different task at same time?In that case will one token work? – S52 Jul 16 '13 at 22:35
@sach: don't worry about that. – dandavis Jul 16 '13 at 22:44
The important point is, to generate a new token - how often you do this, doesn't matter(as long as the tokens are random) – Philipp Jul 17 '13 at 07:42

How to refresh the web page on all user's interface when some user make changes to that page?

1 Answers1