How can web PHP and SQL change the IBM i library list?

[<elehti@xxxxxxxxxxxxxxxxxx>]

How do you web developers enable use of the IBM i library list, so that
your web SQL statements do not need to specify Library names where each
table is located?
Our web developer hard-codes library name (library.table) on each SQL
statement because he does not know how to change a job library list
(INLLIBL parameter (Initial Library List) on the job description.) 

Each of our IBMi environments (production, Development, Customer Test,
Modeling, Budget) have approximately 15 libraries in each.  

Do you modify the INLLIBL parameter (Initial Library List) of the web
user job description?

I would like to make it easier for our Intranet web applications to
switch easily to various environments on our System i .