setId(string $id) Sets the session ID. Parameters string $id

save() Force the session to be saved and closed. This method is generally not required for real sessions as the session will be automatically saved at the end of code execution.

replace(array $attributes) Sets attributes. Parameters array $attributes Attributes

mixed remove(string $name) Removes an attribute. Parameters string $name Return Value mixed The removed value or null when it does not exist

registerBag(SessionBagInterface $bag) Registers a SessionBagInterface with the session. Parameters SessionBagInterface $bag

bool migrate(bool $destroy = false, int $lifetime = null) Migrates the current session to a new session id while maintaining all session attributes. Parameters bool $destroy Whether to delete the old session or leave it to garbage collection int $lifetime Sets the cookie lifetime for the session cookie. A null value will leave the system settings unchanged, 0 sets the cookie to expire with browser session. Time is in seconds, and is not a Unix timestamp. Return Value bool True

bool isStarted() Checks if the session was started. Return Value bool

bool invalidate(int $lifetime = null) Invalidates the current session. Clears all session attributes and flashes and regenerates the session and deletes the old session from persistence. Parameters int $lifetime Sets the cookie lifetime for the session cookie. A null value will leave the system settings unchanged, 0 sets the cookie to expire with browser session. Time is in seconds, and is not a Unix timestamp. Return Value bool True if session invalidated, false if error

bool has(string $name) Checks if an attribute is defined. Parameters string $name The attribute name Return Value bool true if the attribute is defined, false otherwise

mixed getName() Returns the session name. Return Value mixed The session name