(PHP 5 >= 5.4.0, PHP 7, PHP 8)

SessionHandlerInterface::openИнициализирует сессию


public SessionHandlerInterface::open(string $path, string $name): bool

Повторно инициализирует существующую сессию или создаёт новую. Вызывается когда сессия стартует или когда вызвана функция session_start().

Список параметров


Путь, по которому сохраняется/восстанавливается сессия.


Название сессии.

Возвращаемые значения

Возвращаемое значение сессионного хранилища (обычно true в случае успешного выполнения, false, если возникла ошибка). Это значение возвращается обратно в PHP для внутренней обработки.

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User Contributed Notes 2 notes

narf at devilix dot net
9 years ago
The suggestion that you should free the lock as soon as possible is WRONG (and for some reason, I can't downvote it right now).

Releasing the lock before the write() call is as effective as not using locks at all. The whole point is that a concurrent read() HAS to be blocked until the session is closed, otherwise you'll have race conditions.

If you care about the performance aspect, you should take care to call session_write_close() as soon as possible instead.
tony at marston-home dot demon dot co dot uk
5 years ago
Note that once $sessionName has been used to provide a value for $sessionId from the cookie data it is totally redundant as all further reading and writing of the session data is controlled by $sessionId.

If, for any reason, it becomes necessary to identify the value for $sessionName which is associated with the current $sessionId then you should use the value that was passed on the open() method. Attempting to use a value from an alternative source could have unexpected side effects.
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