Step 1 : Log into N99panel. From under N99panel dashboard, click 'VHosts/Websites'

Step 2 : You will see the list of all the VHosts. Please click 'Details/Manage' link against the appropriate VHost/Website

Step 3 : Scroll down to PHP INI Settings and click the pencil icon against it

Step 4 : Now enter the valid PHP INI directives within the textarea box, and then click 'Apply INI Settings'.