To find the PHP.INI file for your web host, just google “your-host php.ini location” and it should pop up as it’s a very common file to edit.
I use MediaTemple and it’s located a couple directories above the ones my websites are in… in the ‘etc’ folder.
Here is a link that explains some PHP.INI settings for WordPress sites.
https://stuartmckiernan.com.au/best-php-ini-settings-for-wordpress/
