I've run out of ideas.  I want to store a variable name and a
function call in a text column of a MySQL database and have them
interpreted at runtime, but I can't figure out how to do it.  

"This is the $nbrtimes you've asked."
"$answer is the square root of sqrt($nbr)."

I've tried to figure out "eval()" but don't seem to be able to make
it work either.  Any ideas?

They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety.
  --Benjamin Franklin

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