Variable Passing Guidelines / Limitations

[fowkswe]

Hello,

I am curious if there are any guidelines on passing variables into functions. Should I be concerned about the size of the variable?

For example, can I pass a string that may be 20 k's worth of characters or is this not a good idea?

Would it be best to pass by reference if this is the case?

I come from a C programming background where the stack used to handle function variables is of limited size. How does PHP handle the passing variables?

THanks!

Billy

[mrgym]

how about a limitation on length of GET vars passed?

http://www.cs.tut.fi/~jkorpela/forms/methods.html