All code in 1 file and all config setting in config file.
Config file will hold DB1 db names, table name, field name.
DB2 Table Name, Field Name and will update record id "1".
All variables will be in config file.
The form has one one text field.
Data will be verified at DB1 and if correct, the value will be updated at DB2 and show success message. If value is not correct: form will "TRY AGAIN DATA NOT CORRECT".
Utilize comments frequently.
Form will be in a table/box and the config page will contain all the varibles for border/no border, font colors, bg colors, etc.
I wish for this form to be simple to use and end user will have no issues understanding how to use it.