| From: | ljb <ljb220(at)mindspring(dot)com> |
|---|---|
| To: | pgsql-php(at)postgresql(dot)org |
| Subject: | Re: Cancel a query when user leaves a web page |
| Date: | 2003-11-19 02:05:35 |
| Message-ID: | bpej5f$54o$1@news.hub.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-php |
noel(dot)faux(at)med(dot)monash(dot)edu(dot)au wrote:
> I have a small problem. Is it possible to cancel a running query when a
> person leave or pressed the stop button in my web page.
> ...
> Have tried
> <?php
> include "functions.php";
> $connection = pg_connect(host, dbname, user);
> ?>
> <html><body onunload(<?close_connection($connection)?>)>
...
This will never work, as you found. The Javascript action is client-side
and PHP is server-side.
Try using register_shutdown_function() to register a function which will
call pg_cancel_query(). As long as PHP isn't ignoring user aborts (see
ignore_user_abort()), your query will be cancelled when the user hits STOP.
Another way is to ignore user aborts, and while waiting for the
asynchronous query to finish, keep calling connection_aborted() to see if
you are still connected to the user; if not you cancel the query and exit.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Muhyiddin A.M Hayat | 2003-11-19 17:44:08 | Re: Cancel a query when user leaves a web page |
| Previous Message | Noel | 2003-11-18 02:33:30 | Cancel a query when user leaves a web page |