PHP Cookies works well on localhost, but it's not working on live server

Question

Note: This issue is already solved, finally I found that it\'s not cookies problem, the problem is on unserialize() function. The serialized cookie which

Answer 1

While applying solutions we get forgot the basic of Cookies.

Cookies are like headers. Like the headers, it should be sent before any output generates. then only it sets successfully. I have struggled a lot for this problem but when i went through the basics this problem got solved quickly.

this syntax will be enough to solve this problem...

setcookie(
'settings',
serialize($defaultSettings),
time()+3600*24*30,
'/'          // this is the path
);