PHP Execution Time Errors

Troubleshoot and resolve PHP Fatal error: Maximum execution time of 300 seconds exceeded in /path/to/file.php errors in WHMCS.

PHP Info

You can view information about your PHP configuration from within the Admin Area.

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.


Replace Legacy Smarty Tags

We plan to permanently remove support for legacy Smarty tags in WHMCS 9.0. You must remove these tags from your customizations on self-hosted WHMCS installations.



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.




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.