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PHP5中文手册
session_is_registered(PHP 4, PHP 5) session_is_registered — Find out whether a global variable is registered in a session 说明
bool session_is_registered
( string $name
)
Finds out whether a global variable is registered in a session. 参数
返回值session_is_registered() returns TRUE if there is a global variable with the name name registered in the current session, FALSE otherwise. 注释
Caution
If you are using $_SESSION (or $HTTP_SESSION_VARS), do not use session_register(), session_is_registered() and session_unregister(). |