open
read
doRead: abc|i:123;
123
updateTimestamp
close
Array
(
    [0] => Content-Type: text/plain; charset=utf-8
    [1] => Cache-Control: max-age=10800, private, must-revalidate
    [2] => Set-Cookie: sid=a2b1dff1c1a91f5f7dbb5b37bf4b6bfc; path=/; secure; HttpOnly
)
shutdown