The "Disable Functions" is not working for me. A few of my apps and WordPress plugins required enabled passthru(), system() and exec().
I've removed these from 'Advanced PHP Configure > Disable Functions' but it doesn't work. I even removed everything in 'Advanced PHP Configure > Disable Functions' and it still doesn't work.
The only way it work is when I edited it inside 'opt/php56m/custom/php.ini'. But the problem with that is whenever I update it changed back.
Also it seems like none of the others in 'Advanced PHP Configure > Disable Functions' are working too lik, Allow URL FOpen and Allow URL Include. I have it unchecked but it still show that it's ON.