how to update cookie value in php

[goldensona]

hi how to update my cookies value in php without change expiration date?

is this possible ? pls suggest your answers

[Dan Grossman]

No. You don't know the expiration date of cookies sent to you, so while you can set another cookie with the same name, you will be changing the expiration.

[susen]

To create or to update a cookie use PHP function setcookie(). for further reference about this function please visit:
PHP: setcookie - Manual

[goldensona]

if we use setcookie, the expiration date also changed i need only to update the value of one cookie without changing the expiration time

[Dan Grossman]

if we use setcookie, the expiration date also changed i need only to update the value of one cookie without changing the expiration time

Again, not possible.

Only the cookie name and value, not its expiration time, is sent with each request.

You cannot change the value without changing the expiration time unless you know exactly when you previously set that cookie.

http://www.ietf.org/rfc/rfc2109.txt

[goldensona]

how to get the expiration date from the cookie

[Dan Grossman]

how to get the expiration date from the cookie

Again, not possible.

Only the cookie name and value, not its expiration time, is sent with each request.

You cannot change the value without changing the expiration time unless you know exactly when you previously set that cookie.

http://www.ietf.org/rfc/rfc2109.txt