PHP 매뉴얼
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# session_is_registered

(PHP 4 , PHP 5)

session_is_registered -- Find out whether a global variable is registered in a session

## Description

bool session_is_registered ( string name)

session_is_registered() returns `TRUE` if there is a global variable with the name `name` registered in the current session.

> 참고: If `$_SESSION` (or `$HTTP_SESSION_VARS` for PHP 4.0.6 or less) is used, use isset() to check a variable is registered in `$_SESSION`.

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

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session_id | 위로 | session_module_name