Php/docs/function.session-is-registered
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session_is_registered
(PHP 4, PHP 5 < 5.4.0)
session_is_registered — Find out whether a global variable is registered in a session
Description
session_is_registered
( string $name
) : bool
Finds out whether a global variable is registered in a session.
Warning This function has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0.
Parameters
name- The variable name.
Return Values
session_is_registered() returns TRUE if there is a
global variable with the name name registered in
the current session, FALSE otherwise.
Notes
Note:
If
$_SESSIONis used, use isset() to check a variable is registered in$_SESSION.
Caution
If you are using $_SESSION
(or $HTTP_SESSION_VARS), do not use
session_register(),
session_is_registered() and
session_unregister().
