ajax script

[Hajjel]

Hello
I have a PHP script that retrieves data from another website which then insert into my database. The problem is that the script is updated using HTML (<meta http-equiv="refresh" content="1">) so when I shut down the browser so the script stops working. So I need an ajax script that runs in the background every second even when the browser is closed. I turn to you because I can't AJAX at all.

[Jaan]

Well.. You can't do it with AJAX, you must use cron for it.

[Hajjel]

Well.. You can't do it with AJAX, you must use cron for it.

Can u write a example?

[Orjan]

cron scripts can't run more often than each minute.

cron is similar to task scheduler in windows, but in the *nix^Wiki world instead. if you are on a web hotel, they need to allow you to add cron scripts. many do, most don't.

[Jaan]

Well.. your server has to have "Cron jobs" enabled.. I mean it has to be enabled in your Control panel..

But what Control panel are you using ?

[Hajjel]

Quoting a friend:

You have a script that kicks off at startup. Then you have the while-loop with a timer routine in.

While loop is made that it is always true, type (1 == 1), and then in the loop so you have a delay, either based on a timer or it makes a bit pointless crap in the background that takes time. It is up to you what you want to do.

Then make it a poll on the site, and parses the poll and store relevant data in a database. Do not forget to lock the database before writing to prevent multiple writes to the same database at the same time.

You put it in startup simply.

According to him, should I use ajax as described above.

[Orjan]

well, sure, but then you really need a computer with a web browser open to always run that script?