PHP Mssql Connection Error: Permissions?

I have a PHP script that makes a connection to SQL Server. 

>From the command line as root: tsql -H hostname -U username connects just
great and I can run queries.

 

I have a PHP script in /var/www/html/axis/public/test.php

When I: sudo -u apache -s (change the user from root to apache) and then run
my PHP script from the command line, it connects just great.

But, from the web browser, it fails. The web browser is able to connect
everywhere it is supposed to and renders all the web pages that don't need
an SQL connection.

 

apache is the user that is running httpd. I've confirmed this via: ps aux |
grep apache

 

Any ideas as to why apache can run the PHP script and connect just fine from
the command line, but when the browser attempts to connect to the very same
script, it fails?

 

Thanks,

Derrick