What is the maximum value you can set the cookie_lifetime to?

wotney

11/1/22, 12:51 PM

I have a Drupal 8 site, and in my sites/default/servicel.yml file, I need to set the cookie lifetime to their maximum allowed value. I have searched the internet, but I can't seem to find the maximum allowed value. Is there one? Currently it is set to:

# Set session lifetime (in seconds), i.e. the time from the user's last
# visit to the active session may be deleted by the session garbage
# collector. When a session is deleted, authenticated users are logged out,
# and the contents of the user's $_SESSION variable is discarded.
# @default 200000
gc_maxlifetime: 2147483647
#
# Set session cookie lifetime (in seconds), i.e. the time from the session
# is created to the cookie expires, i.e. when the browser is expected to
# discard the cookie. The value 0 means "until the browser is closed".
# @default 2000000
cookie_lifetime: 2147483647

112

0 + 4

sonfd

11/1/22, 1:27 PM

Is that not long enough? > 68 years?

4uk4

11/1/22, 2:22 PM

PHP 32-bit or 64-bit? For 32-bit this is the maximum positive value and adding the current time results in an overflow. This is why you can't go beyond 2038 (the Y2K38 bug). For 64-bit there is no restriction as long as the browser accepts the expires date.

wotney

11/1/22, 8:24 PM

@sonfd - haha, yeah, but I'm not sure it's being accepted - I think the vlue may be too high ! Ps. I didn't set this value !

Ryan Hartman

11/1/22, 10:02 PM

I think you need to step back here, What Drupal website do you see being used that long? Further, what browser would never have it's storage cleared for that long? This value (personally) should be set to something within the realm of minutes to months. You have to explain that browsers/os are upgraded, and cookies will be lost. A user should be logging in from time to time for security reasons.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: What is the maximum value you can set the cookie_lifetime to?

TH: ค่าสูงสุดที่คุณสามารถตั้งค่าให้ cookie_lifetime เป็นเท่าใด

RO: Care este valoarea maximă la care puteți seta cookie_lifetime?

RU: Какое максимальное значение вы можете установить для cookie_lifetime?

VI: Giá trị tối đa bạn có thể đặt cookie_lifetime là bao nhiêu?

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