session_status
(PHP >=5.4.0)
session_status — Returns the current session status
说明
int session_status
( void
)
session_status() is used to return the current session status.
返回值
PHP_SESSION_DISABLED if sessions are disabled.
PHP_SESSION_NONE if sessions are enabled, but none exists.
PHP_SESSION_ACTIVE if sessions are enabled, and one exists.
参见
session_start() - 启动新会话或者重用现有会话