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session_unregister

(PHP 4 )

session_unregister --  Unregister a global variable from the current session

Description

bool session_unregister ( string name)

session_unregister() unregisters 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. Do not unset() $_SESSION itself as this will disable the special function of the $_SESSION superglobal.

Caution

This function does not 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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