Step 1 : Log into N99panel. From under N99panel dashboard, click 'PHP Cooker'
Step 2 : Click on 'Add a PHP Cooker'
Step 3 : Set the Reference Name, the base PHP version and choose the extensions. And then finally click Submit at the bottom of the page
Step 4 : To apply the cooked version, now when you change the PHP version (refer : this link ) for a VHost/Website, you will see the relevant PHP Cooker entries