Session expiration time for url parameters

[unixcommerce]

I link to the following url with the included parameter to temporarily change the theme to my site. it works like a charm. But when I leave the browser open for a few mins, it deactivates and I am sent back to the theme that is set in the General Settings for the site. I have come to realize that somewhere, there is a time set that deletes the session cookie that is forcing that change. I need to know how I can either pragmatically extend that time by editing some file in whmcs, edit a setting in php to force that change for the whole site, or activate some configuration in the general settings or configuration files to make that time limit longer. What is the best way to accomplish this?

 https://www.mywebsite.com/whmcs/index.php?systpl=theme2

[WHMCS Lawrence]

On 8/9/2020 at 9:09 PM, unixcommerce said:

I link to the following url with the included parameter to temporarily change the theme to my site. it works like a charm. But when I leave the browser open for a few mins, it deactivates and I am sent back to the theme that is set in the General Settings for the site. I have come to realize that somewhere, there is a time set that deletes the session cookie that is forcing that change. I need to know how I can either pragmatically extend that time by editing some file in whmcs, edit a setting in php to force that change for the whole site, or activate some configuration in the general settings or configuration files to make that time limit longer. What is the best way to accomplish this?

 https://www.mywebsite.com/whmcs/index.php?systpl=theme2

We respect the session timeout value set in PHP on the server, and this would usually suggest that either the timeout is set too low (your system administrator can correct that) or something is causing the session to be invalidated after a few minutes. If you are running WHMCS behind a proxy/CDN, such as CloudFlare, I'd recommend adding it as a trusted proxy as described at https://docs.whmcs.com/Trusted_Proxy_Settings as an IP change usually occurs every few minutes on such services and would result in the session being invalidated as a result.

[unixcommerce]

What do I need to change in my PHP.INI. is it session.gc_maxlifetime. I have tried changing the value from 1440 to 65535 but the issue is still present. please help.

Also, is there a more clean way to implement this. is there a way I can use a different theme for mobile lets say. Not a responsive theme, but a separate theme all together for the mobile device when they go to the website. 

Edited August 12, 2020 by unixcommerce