How do you see which php extensions are enabled or loaded?

When working with PHP you sometimes use functions that are builtin into extensions. How do you see which php extensions have been enabled or loaded? I am a Linux System Administrator, that also does Web Development on the macOS. SUBSCRIBE AND TURN ON NOTIFICATION TO SEE MY NEW VIDEOS! https://www.youtube.com/DanielPlatt_UK?sub_confirmation=1 WATCH THESE VIDEOS NEXT! PHP https://www.youtube.com/playlist?list=PLoWBX73_IFMgTV0JJKMU2-X2PDgeqD3Dw NGINX https://www.youtube.com/playlist?list=PLoWBX73_IFMggE67WD3f-Xr6F6bowBovT MySQL https://www.youtube.com/playlist?list=PLoWBX73_IFMhRCef5kbWRbrEWaFKTwTDb MacOS https://www.youtube.com/playlist?list=PLoWBX73_IFMjW1dhKU2WoTsamQyZMk_HM If you would like to learn more, then checkout online courses on Udemy. VPS Hosting with PHP and NGINX https://www.udemy.com/course/ubuntu-php-nginx-digital-ocean-vps/?referralCode=7FCD50FE157291EF9E84 NGINX Examples https://www.udemy.com/course/nginx-by-example/?referralCode=C22DA4C6E44EEEEA30CE Affiliate Marketing with Symfony https://www.udemy.com/course/affiliate-marketing-website-with-symfony-using-feeds/?referralCode=1FE785BD24EFACA98EB6 Alternatively, watch my courses on SkillShare with a free trial. https://www.skillshare.com/r/user/danielplatt #Terminal #PHP