The PHP information and parameters, applied to your hosting account, can be checked at any moment by going to Websites → Manage, searching for PHP Info on the left sidebar, and clicking on it:
There, you will be able to see the current PHP Configuration for your website, including:
If some specific PHP extensions are applied
If some specific PHP options are added, and which value they have
PHP limitations, like max_execution_time and others
And many more.