Migrating a mediawiki instance from the old server to a new box. Of course it does not work (returns an empty 500 Error page). Of course there is no entry in error.log. Of course there is no obvious match of verbose/debug in a grep over the config files. Lovin' it

Sorry about this silly question but, did you check bellow php.ini's directives?

- error_reporting
- display_errors
- log_errors

How they look like?

Sorry about my english and thank you.