I have a simple method of creating easy form processing.... 
I thought....

I came up with the idea (I am not claiming to be the first) 
to have form elements I want to update via MySQL starting 
with either "-" or "+".

Example:

+name=DAN
+email=dan@wavefront.ca
-notes=
id=1

The first 2 are required and will be updated, the 3rd is 
optional and will be updated and the 4th (id) is simply 
passed as form data.

The idea here is that I parse the $_POST variable to auto 
create a "UPDATE table SET name = 'Dan', email = 
'dan@wavefront.ca' WHERE = 1" string for MySQL.

The issue is that if I use the "+" to indicate a required 
field for error trapping my $_POST array ends up like this:

+namD=AN
+emaild=an@wavefront.ca
-notes=
id=1

If a change to any other character (* for example) it work 
fine.

Either this is a PHP / HTTP bug or I am up against some 
strange post naming restriction.  I searched the web, the 
PHP site (includeing the bugs) and could not spot an 
obvious reference.

Dan