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Deleting cookies in other subdomains

I was wondering if it is possible to delete a cookie in PHP, i.e. to re-set the time to time in the past, for a specific subdomain from another subdomain.

For example:

Let's say I execute the following code on one.myserver.com, which is intended to delete a cookie on two.myserver.com

setcookie("ACOOKIE", 0, time() - 3600, "/", "two.myserver.com");

This currently does not work for me. Is there a way I can get something like this to work?

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3 answers

No, you can only do this from another subdomain.

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You do not even know that they exist, because they will be sent (only through the client’s browser) when accessing the domain from which they were originally intended.

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Impossible. Cookies can only be installed and removed from the same domain.

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