Raw pages must be accessed through the primary script entry point [MediaWiki v1.12]

When I tested the new feature "(bug 11353) add ability to retrieve raw section content via action=raw " of MediaWiki v1.12 by means of PHP require_once() statement, I met the following error message:

Forbidden Raw pages must be accessed through the primary script entry point.

The problem URL is

• Path_to_Mediawiki/index.php/Wiki_Calendar?action=raw

The correct URL is

• Path_to_Mediawiki/index.php?title=Wiki_Calendar&action=raw
• or Path_to_Mediawiki/index.php?title=Wiki_Calendar&action=raw&section=n if you want to specify which section (n is the number)

Reference

• ?action=raw - MediaWiki Forums
• I could swear action=raw worked

Related configuration

• What if I see a 'URL file-access is disabled in the server configuration' message? -- enable the allow_url_fopen and allow_url_include options in PHP.ini file

allow_url_fopen = On allow_url_include = On