All indenting is done with TABS. Before committing any file to CVS, make sure you first replace spaces with tabs and verify the formatting.
3.3.2. PHP Tags
The use of <?php ?> to delimit PHP code is required. Using <? ?> is not valid. This is the most portable way to include PHP code on differing operating systems and webserver setups. Also, XML parsers are confused by the shorthand syntax.