Does a cookie have to be set in the http header?

Would开发者_运维知识库 like to set cookies from the server (CGI - C)

Can it be set after the header has been printed?

Thanks.

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Not directly, cookies that come directly from the server must be explicitly set in the response header using Set-Cookie. See here for a thorough explanation.

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You can set cookies using JavaScript embedded in an HTML document, or via a few other mechanisms, such as Flash.

Other than that though, the header is the only place in HTTP you can set them.