Variables passed to/from functions

I'm having trouble getting variables to follow through from a function in which their value is altered. As previously suggested by people here I declared said variables first so they are classified as variables on a program-wide scope rather than just within the function.

I have also attempted to call the function specifically with the var names eg: call functionname(var1,var2,var3,var4,var5,var6)

the problem is that in a later part of the program i need to call var1 through 6 within another function, where they are written to the database. When they don't get passed from function1, they default to the null value from when they were dim'ed, and i get a whole bunch of blank values in the database.

i discovered that the reason it wasn't working was that i was attempting to use the values from function1 in function2, like:

Edited by ub3rl337ch3ch - 06 September 2005 at 8:20pm

Check out the differences between functions and subroutines as well. A function is really just supposed to return a referenceable value and a sub routine fills multiple variables.

So if you had a function like...
Function fncX (A, B)
    If A = B then
        fncA = true
       Else
       fncA = false
End Function

Then you check it inline by

If fncX("sss", "sss") then ...


or you do something like
Dim A
Dim B
Function fncGetIt()
    fncGetIt = A + B
End Function

And in your code you'd do something like
~code to manipulate A and B ~
Response.Write fncGetIt

Most asp commands are just functions - e.g date, instr, trim, etc. Functions allow you to write your own reuseable commands whereas subroutines are reuseable blocks of application code.  It's admittedly a fine distinction but a rule of thumb is if you can wrap the logic and use it like a command, it should be a function. If not, then it should be a subroutine.


Edited by dpyers - 07 September 2005 at 5:08am