PHP Upgrades

To meet WHMCS's PHP version requirements on your self-hosted WHMCS installation, you may need to periodically update PHP to a new supported version.








Sessions

File sessions and database sessions preserve data across subsequent page loads within web applications. If you use a self-hosted WHMCS installation, you can use file-backed or database-backed sessions in your custom web applications.




Smarty Security Policy

Smarty Security Policies are security hardening measures that protect a system. WHMCS applies a Smarty Security Policy for system-wide use and a mail policy for stored and dynamic email-based templates.


Smarty Variable Errors

Troubleshoot and resolve errors caused by disallowed Smarty special variables in templates.








System Health

Use System Health to view your system environment status and quickly find and address issues.


System Timezone Issues

Troubleshoot and resolve timezone-related automation issues, like incorrect timestamps or cron frequency warnings.




Whoops Exception Errors

Troubleshoot and resolve Whoops Exception Maximum execution time of 30 seconds exceeded errors.


Update PHP with cPanel MultiPHP

You can use cPanel's MultiPHP Manager and MultiPHP INI Editor features to upgrade PHP for your self-hosted WHMCS installation.