[Php]http Response Header parsing

(Status-line) http/1.1  $Okcache-control no-cachecontent-length -Content-type image/gifdate Sat, -Dec the  -: Geneva:GenevaGmtexpires-1P3P CP="All IND DSPs COR ADM CONo CUR CUSo ivao ivdo PSA PSD TAI TELo our SAMo CNT COM INT NAV ONL PHY PRE PUR UNI"Pragma No-Cacheserver Microsoft-iis/7.5Set-cookie MS0=8F3C483078684B5BAA1C0F017E720EFD; domain=.microsoft.com; Expires=sat, --dec- the  -: +:GenevaGMT; path=/X-powered-by ASP.

1, the version number of the HTTP protocol status code

2. Cache control

3. Length

4. Type of resolution

5, the current time of the server

6,Expires indicates the existence time, allows the client to not check (send request) before this time, the equivalent of max-age effect. But if it exists at the same time, it is covered by Cache-control max-age.

7. P3P is a recommended standard for privacy protection published by the World Wide Web Consortium to provide privacy protection for Internet users who surf the web.

8. pragma header domain is used to contain the implementation of specific instructions, the most commonly used is pragma:no-cache. In the http/1.1 protocol, it has the same meaning as Cache-control:no-cache.

8. Server information

9. Cookies

10, tell the website is to use what to write

[Php]http Response Header parsing