How can I re-set MySQL server time-out ?

[ramasaig]

My local phpMyAdmin (or more probably the underlying MySQL) keeps timing out after half an hour, and I have to log in again. This may be a good secrity feature in a production environment, but its very irritating during development, How can I reset it, please ?

Conversely my production phpMyAdmin (at my web host) doesn't seem to time out at all, and has no 'Log Out' button on the dashboard. Should I be able to log out ? I want to log out, not close the MySQL server, of course.

[Dan Grossman]

It's probably the PHP session expiring, which is controlled through your php.ini file.

[ramasaig]

Thanks for the suggestion, but I don't think that can be it.
My access to MySQL via phpMyAdmin times out, but not my access via the php script on my web pages.
I've searched php.ini on several terms (time, expire, session) but found nothing that looks likely.
I also searched the phphMyAdmin folder on '1800', and found '$cfg['LoginCookieValidity'] = 1800;' BUT this is in a file called 'library/config.default.php' which is clearly marked 'do not edit, EDIT config.inc.php INSTEAD'. This line is NOT in 'config.inc.php'.
So I'm going to try placing it there and playing with the time setting. Perhaps if there's no figure it won't time out.

[ramasaig]

That's definitely where the problem lies. I copied the line into config.inc.php and set the time to 3600 as: '$cfg['LoginCookieValidity'] = 3600;'. Now it times out every hour instead of every half hour.