The header header in PHP sets the difference between the cookie and the built-in Setcookie ____php

First of all, it is stated that the browsing cookie operation is implemented through the HTTP header (commonly known as the "HTTP Header"). All the cookie data transfers between the server and the client are done through the HTTP request header.

PHP Setcookie (function Implementation), is the HTTP header encapsulation, which seems to use the header and the use of Setcookie is the same.

Because header information belongs to HTTP protocol content, you must first send the head information to the server, then data download and other operations, so there is no content output before Setcookie and header (for example: echo/printf, etc.)

Header Set Cookie method:

1	Header ("Set-cookie:testcookie= Chinese"; path=/; domain=.sunphp.org; Expires= ". Gmstrftime ("%A,%d-%b-%y%h:%m:%s GMT", Time () + 9600));

Setcookie Setup mode:
Syntax: Setcookie (name,value,expire,path,domain,secure)
Cases:

1	Setcookie ("website", ' www.sunphp.org ', time () + 3600 * 24);

parameter	description
name	required. Specify the name of the cookie.
value	is required. Specify the value of the cookie.
expire	is optional. Specify the expiration date of the cookie.
path	is optional. Specify the server path for the cookie.
domain	is optional. Specify the domain name of the cookie.
secure	is optional. Specify whether to transmit cookies through a secure HTTPS connection.