The maintenance/update.php script fails for me.

-sh-3.00$ php ./update.php PHP Fatal error: Cannot redeclare wfprofilein() (previously declared in /home/humancell/mediawiki-1.6.2/includes/ProfilerStub.php:6) in /home/humancell/public_html/includes/Setup.php on line 30 Content-type: text/html X-Powered-By: PHP/4.3.9

I have the same problem whether using mediawiki-1.6.2 or 1.6.5 My php version is not the latest (4.3.9-3.12), but is still supported according to INSTALL: "Web server with PHP 4.3.2 or higher; 4.4.x or 5.x is recommended."

Any suggestions?