(PHP 5 >= 5.4.0, PHP 7, PHP 8)
SessionHandlerInterface::close — Close the session
Closes the current session. This function is automatically executed when closing the session, or explicitly via session_write_close().
This function has no parameters.
The return value (usually true on success, false on failure). Note this value is returned internally to PHP for processing.
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.
