Christian,
Thank you for the reply. The variables present in the output that you requested appear at the end of this post.
Do you know why $_SERVER['DOCUMENT_ROOT'] is unavailable in my environment and how I might enable it?
[LD_LIBRARY_PATH]
[FCGI_ROLE]
[HTTP_ACCEPT]
[HTTP_ACCEPT_LANGUAGE]
[HTTP_USER_AGENT]
[HTTP_ACCEPT_ENCODING]
[HTTP_HOST]
[HTTP_CONNECTION]
[PATH]
[TZ]
[sERVER_SOFTWARE]
[sERVER_PORT]
[sERVER_NAME]
[sERVER_URL]
[REMOTE_HOST]
[REMOTE_ADDR]
[HTTPS]
[GATEWAY_INTERFACE]
[sERVER_PROTOCOL]
[REQUEST_METHOD]
[REQUEST_URI]
[sCRIPT_NAME]
[sCRIPT_FILENAME]
[PATH_TRANSLATED]
[sERVER_HOSTNAME]
[sERVER_ADDR]
[php_SELF]
[REQUEST_TIME]