How to fix session start errors.
Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct () in Unknown on line,
Warning: session_start() [function.session-start]: open
Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent
Create a php5.ini if does not server does not have one already on root, or root can’t be access, (hosting providers like Godaddy, often restricted access to the root).
session.save_path = "/MYABSOLUTEPATH/html/tmp"