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# session_unregister

(PHP 4 )

session_unregister -- Unregister a variable from the current session

## Description

bool session_unregister ( string name)

session_unregister() unregisters (forgets) the global variable named `name` from the current session.

This function returns `TRUE` when the variable is successfully unregistered from the session.

> Note: If `$_SESSION` (or `$HTTP_SESSION_VARS` for PHP 4.0.6 or less) is used, use unset() to unregister a session variable.

Caution
This function doesn't unset the corresponding global variable for `name`, it only prevents the variable from being saved as part of the session. You must call unset() to remove the corresponding global variable.

Caution
If you are using `$_SESSION` (or `$HTTP_SESSION_VARS`), do not use session_register(), session_is_registered() and session_unregister().

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