Nice script
but,
enabling/ disabling few php functions doesn't make the hosting provider a geek / noob ..
there are many more factors which has to be taken into account .
and whats the use of disabling php functions , when people need it..
a good server admin has to give access to those functions and at the same time, he should take care of the effects that the functions may cause. .

*cough* chroot *cough*