Fix PHP notice: a session had already been started

[cweric]

No description provided.

[narfbg]

Either use session_start() manually or CI's Session native driver - don't do both, the driver depends on the assumption that you won't interfere with it and a lot of stuff will break if you do.

[cweric]

But sometimes involved several libraries together
ex: ./system/libraries/Cart.php
$this->CI->load->driver('session', $config);
and the other libraries have similar session requirement too.
So ./system/libraries/Session/drivers/Session_native.php must handle this.

[narfbg]

Good reasoning, but it's just not the right solution - there should be a way to avoid loading the same session driver twice, and that should depend on CI internals, not PHP's session_*() functions.

[cweric]

OK, are you mean CI Session driver internals?

1. CI_Session.__construct
2. CI_Driver_Library.load_driver
3. CI_Session_driver.decorate
4. CI_Session_native.initialize
5. session_start

[narfbg]

Yes, of course.