Session Confusion

[slice]

I have looked into some codes about session management.
Sequense of session functions are something like that

session_start(); //starts session
session_unset();//remove all the data from the session
session_destroy();//remove the session itself

//and then 
session_register(); //is called

I am confused about why session_destroy function is called before session_register function.
Thank You.

[sciguyryan]

I am confused about why session_destroy function is called before session_register function.
Thank You.

The only reason I can think fo would be to remove any pre-existing sessions or possible ones that may have been injected, those the only reasons I can think of.

Cheers,

Ryan Jones

[slice]

But it would not nullify session_start() ?

[CornedBee]

It might, but session_register starts a session automatically if needed.

[slice]

It might, but session_register starts a session automatically if needed.

Then why coders use session_start() and then session_unset() following session_destroy() before session_register().

[sciguyryan]

Then why coder use session_start() and then session_unset() following session_destroy() before session_register().

Probably for some reason, I still think its to destroy any pre-existing sessions but its not really important to do it that way anyway...

Cheers,

Ryan Jones