How to Create a Cookie?

The setcookie() function is used to set a cookie.
Note: The setcookie() function must appear BEFORE the < html > tag.
Syntax
setcookie(name, value, expire, path, domain);
Example 1
In the example below, we will create a cookie named "user" and assign the value "Alex Porter" to it. We also specify that the cookie should expire after one hour:
< ?php
setcookie("user", "Alex Porter", time()+3600);
? >

< html >
.....
Note: The value of the cookie is automatically URLencoded when sending the cookie, and automatically decoded when received (to prevent URLencoding, use setrawcookie() instead).
Example 2
You can also set the expiration time of the cookie in another way. It may be easier than using seconds.
< ?php
$expire=time()+60*60*24*30;
setcookie("user", "Alex Porter", $expire);
? >

< html >
.....
In the example above the expiration time is set to a month (60 sec * 60 min * 24 hours * 30 days).