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# session_unset

(PHP 4 >= 4.0.0)

session_unset -- Free all session variables

## Description

``void session_unset` (void)`

The session_unset() function free's all session variables currently registered.

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

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