How to rename a session file?

I want to create and online members and guests counter. I save the members sessions in a folder and the guests sessions in another folder. I can get the number of guest simply by counting the session files, but with the members I want to get a list with the name of the members online.

Is there any way to change the session 开发者_运维技巧file name to the user`s name in PHP ?

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You have to define your own session handler.

See session_set_save_handler for details. There's a code sample you can easily adapt to your needs.