CONTEXT_DOCUMENT_ROOT: /home/course/u90/public_html
DOCUMENT_ROOT: /home/course/u90/public_html
CONTEXT_PREFIX: 
REQUEST_URI: /examples_php_general/web/t1/t2/t3/test_location.php
SCRIPT_NAME: /examples_php_general/web/t1/t2/t3/test_location.php