>I have never seen a language work the way you want. Specifying the scope of variables. However, maybe VFP needs an option like VB, Option Explicit. So all variables must be defined.
>

PMFJI - C++ and C# both work that way (eg. all variables are local). In fact, they take it one step further and scope only within there curly-braces {}

eg.

void SomeMethod(bool MyLogical)
{
  if(MyLogical)
  {
     // MyInteger is only local within these curly-braces
     int MyInteger;
  }

  // MyInteger is out of scope here
}