When I create a cookie, how to get cookie\'s expire time?
When you create a cookie via PHP die Default Value is 0, from the manual:
If set to 0, or omitted, the cookie will expire at the end of the session (when the browser closes)
Otherwise you can set the cookies lifetime in seconds as the third parameter:
http://www.php.net/manual/en/function.setcookie.php
But if you mean to get the remaining lifetime of an already existing cookie, i fear that, is not possible (at least not in a direct way).