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(PHP 5 >= 5.4.0)
SessionHandlerInterface::close — Close the session
Closes the current session. This function is automatically executed when closing the session, or explicitly via session_write_close() .
此函数没有参数。
会话存储的返回值(通常成功返回 0,失败返回 1)。
[#1] svenr at selfhtml dot org [2013-04-30 21:29:50]
This method should release the exclusive lock that was acquired by the open() method.
Note that this will effectively serialize parallel requests, which affects performance for a single user session.
Not locking the resource would on the other hand allow for race conditions if two or more parallel requests change the session data.