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PHP Manual :: session_unset



session_unregister || session_write_close || Session Functions || PHP Manual

(PHP 4, PHP 5, PHP 7)

session_unsetFree all session variables

Description

void session_unset ( void )

The session_unset() function frees all session variables currently registered.

Return Values

No value is returned.

Notes

Note:

If $_SESSION (or $HTTP_SESSION_VARS for PHP 4.0.6 or less) is used, use unset() to unregister a session variable, i.e. unset ($_SESSION['varname']);.

Caution

Do NOT unset the whole $_SESSION with unset($_SESSION) as this will disable the registering of session variables through the $_SESSION superglobal.



session_unregister || session_write_close || Session Functions || PHP Manual
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