I have been moving my websites from one server to another. On my old server I was able to send php header information in the middle of a php document (part of a logon form). My new server just shows 'Warning: Cannot modify header information - headers already sent by' is there a particular setting in the php config that could be changed or is it the php version which is causing the problem.
If it helps I can give you the phpinfo file of each server.
Any help will be much appreciated. Thanks