I need to show some info only to admins visiting a page, so I need a conditional tag to identify them. So far I have found:
<?php if ( current_user_can('manage_options') ): ?>
is this the correct function?
Yes, that's good.
You can be a little safer using
I think it is better to check for role rather than specific capability for such purpose, this should work:
See Roles and Capabilities in Codex.