When setCookie () is used, the Cookie cannot be saved if the domain name is specified as "localhost". why?

Source: Internet
Author: User
When setCookie () is used, the Cookie cannot be saved if the domain name is specified as "localhost". why ?? Found during local testing. In this way, you can set the Cookie: PHPcodesetCookie (name [1], yy1, time () + 3600,); setCookie (name [2], yy2, time () + 3 using setCookie () when the domain name is specified as "localhost", the Cookie cannot be saved. why ??
Found during local testing.

In this way, you can set the Cookie:
PHP code
      setCookie('name[1]', 'yy1', time() + 3600, '/');    setCookie('name[2]', 'yy2', time() + 3600, '/');


This will not work:
PHP code
      setCookie('name[1]', 'yy1', time() + 3600, '/', 'localhost');    setCookie('name[2]', 'yy2', time() + 3600, '/', 'localhost');


Why? Is the parameter "localhost" incorrect ???

Thank you!

------ Solution --------------------
When working on localhost the cookie-domain must be set to "" or NULL or FALSE
------ Solution --------------------
Discussion

When working on localhost the cookie-domain must be set to "" or NULL or FALSE

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