dan nessett wrote:
Sprinkling the computation of $IP all over the place
is just
looking for trouble. At some point the code used to make this
computation may diverge and you will have bugs introduced. My first
reaction to this problem was to wonder why these files didn't just
require LocalSettings.php. However, since it is a fairly complex
file doing so might not be desirable because: 1) there are values
in LocalSettings.php that would interfere with values in these
files, 2) there is some ordering problem that might occur, or 3)
there are performance considerations.
No, the reason is because LocalSettings.php is in the directory
pointed to by $IP, so you have to work out what $IP is before you can
include it.
Web entry points need to locate WebStart.php, and command line scripts
need to locate maintenance/commandLine.inc. Then either of those two
entry scripts can locate the rest of MediaWiki.
-- Tim Starling