Detailed explanation of PHP header function setting http message header example

<span>//定义编码
header( <span>'Content-Type:text/html;charset=utf-8 ');
 
<span>//Atom
header(<span>'Content-type: application/atom+xml');
 
<span>//CSS
header(<span>'Content-type: text/css');
 
<span>//Javascript
header(<span>'Content-type: text/javascript');
 
<span>//JPEG Image
header(<span>'Content-type: image/jpeg');
 
<span>//JSON
header(<span>'Content-type: application/json');
 
<span>//PDF
header(<span>'Content-type: application/pdf');
 
<span>//RSS
header(<span>'Content-Type: application/rss+xml; charset=ISO-8859-1');
 
<span>//Text (Plain)
header(<span>'Content-type: text/plain');
 
<span>//XML
header(<span>'Content-type: text/xml');
 
<span>//200 OK
header(<span>'HTTP/1.1 200 OK');
 
<span>//设置一个404头:
header(<span>'HTTP/1.1 404 Not Found');
 
<span>//设置地址被永久的重定向
header(<span>'HTTP/1.1 301 Moved Permanently');
 
<span>//转到一个新地址
header(<span>'Location: http://www.example.org/');
 
<span>//文件延迟转向:
header(<span>'Refresh: 10; url=http://www.example.org/');
<span>print <span>'You will be redirected in 10 seconds';
 
<span>//当然，也可以使用html语法实现
<span>//<meta http-equiv="refresh" c>//override X-Powered-By: PHP:
header(<span>'X-Powered-By: PHP/4.4.0');
header(<span>'X-Powered-By: Brain/0.6b');
 
<span>//文档语言
header(<span>'Content-language: en');
 
<span>//告诉浏览器最后一次修改时间
<span>$time = time() - <span>60; <span>// or filemtime($fn), etc
header(<span>'Last-Modified: '.gmdate(<span>'D, d M Y H:i:s', <span>$time).<span>' GMT');
 
<span>//告诉浏览器文档内容没有发生改变
header(<span>'HTTP/1.1 304 Not Modified');
 
<span>//设置内容长度
header(<span>'Content-Length: 1234');
 
<span>//设置为一个下载类型
header(<span>'Content-Type: application/octet-stream');
header(<span>'Content-Disposition: attachment; filename="example.zip"');
header(<span>'Content-Transfer-Encoding: binary');
<span>//load the file to send:
readfile(<span>'example.zip');
 
<span>//对当前文档禁用缓存
header(<span>'Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
header(<span>'Expires: Mon, 26 Jul 1997 05:00:00 GMT'); <span>// Date in the past
header(<span>'Pragma: no-cache');
 
<span>//设置内容类型:
header(<span>'Content-Type: text/html; charset=iso-8859-1');
header(<span>'Content-Type: text/html; charset=utf-8');
header(<span>'Content-Type: text/plain'); <span>//纯文本格式
header(<span>'Content-Type: image/jpeg'); <span>//JPG***
header(<span>'Content-Type: application/zip'); <span>// ZIP文件
header(<span>'Content-Type: application/pdf'); <span>// PDF文件
header(<span>'Content-Type: audio/mpeg'); <span>// 音频文件
header(<span>'Content-Type: application/x-shockw**e-flash'); <span>//Flash动画
 
<span>//显示登陆对话框
header(<span>'HTTP/1.1 401 Unauthorized');
header(<span>'WWW-Authenticate: Basic realm="Top Secret"');
<span>print <span>'Text that will be displayed if the user hits cancel or ';
<span>print <span>'enters wrong login data';</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><br>

#Attachment: HTTP header detailed explanation

Requests part

Accept-RangesAuthorization Cache-ControlConnectionCookieContent-LengthContent-TypeDateExpectFromHostIf-MatchIf-Modified- SinceIf the entity has not changed, the server Send the client's missing parts, otherwise send the entire entity. The parameter is also EtagThe request is successful only if the entity has not been modified after the specified timeLimit the time when information is transmitted through proxies and gatewaysUsed to contain implementation-specific instructionsAuthorization certificate connected to the proxyOnly request a part of the entity, specify the rangeThe address of the previous webpage, the current requested webpage is immediately followed, that is, the way to go The transfer encoding that the client is willing to accept, and notifies the server to accept the tail plus header information Specify a certain transport protocol to the server for conversion by the server (if supported) The content of User-Agent contains the user information that made the requestWarn: 199 Miscellaneous warning

Responses section

Header	Explanation	Example
Accept	Specify the content type that the client can receive	Accept: text/plain, text/html
Accept-Charset	The character encoding set that the browser can accept.	Accept-Charset: iso-8859-5
Accept-Encoding	Specifies the content compression encoding type returned by the web server that the browser can support.	Accept-Encoding: compress, gzip
Accept-Language	Accept-Language: en,zh
You can request one or more web page entities Sub-range field	Accept-Ranges: bytes
Authorization certificate for HTTP authorization	Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
Specify the caching mechanism followed by requests and responses	Cache -Control: no-cache
indicates whether a persistent connection is required. (HTTP 1.1 uses persistent connections by default)	Connection: close
When an HTTP request is sent, all cookie values ​​stored in the requested domain name will be sent to the web server.	Cookie: $Version=1; Skin=new;
Requested content length	Content-Length: 348
The requested MIME information corresponding to the entity	Content-Type: application/x-www-form-urlencoded
The date and time the request was sent	Date: Tue, 15 Nov 2010 08:12:31 GMT
Specific server behavior requested	Expect: 100-continue
Email of the user who made the request	From: user@email.com
Specify the domain name and port of the requested server No.	Host: www.zcmhi.com
Only valid if the request content matches the entity	If-Match: "737060cd8c284d8af7ad3082f209582d"
if requested If the part is modified after the specified time, the request is successful. If it has not been modified, a 304 code will be returned. If the content has not changed, a 304 code is returned. The parameter is the Etag previously sent by the server. Compare it with the Etag responded by the server to determine whether it has changed. If-None-Match: "737060cd8c284d8af7ad3082f209582d"		If-Range
If-Range: "737060cd8c284d8af7ad3082f209582d"		If-Unmodified-Since
If-Unmodified-Since: Sat, 29 Oct 2010 19:43:31 GMT		Max-Forwards
Max-Forwards: 10		Pragma
Pragma: no -cache		Proxy-Authorization
Proxy-Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==		Range
Range: bytes=500- 999		Referer
Referer: http://www.zcmhi.com/archives/71.html		TE
TE: trailers,deflate;q=0.5		Upgrade
Upgrade: HTTP/2.0, SHTTP/1.3, IRC/6.9, RTA/x11		User-Agent
User-Agent: Mozilla/5.0 (Linux ;

Header	Explanation	Example
Accept-Ranges	Indicates whether the server supports specified range requests and what type of segmented requests	Accept-Ranges: bytes
Age	Estimated time from origin server to proxy cache formation (in seconds, non-negative)	Age: 12
Allow	A valid request behavior for a certain network resource, if not allowed, return 405	Allow: GET, HEAD
Cache-Control	Tell all caching mechanisms whether they can be cached and which types	Cache-Control: no-cache
Content-Encoding	The returned content supported by the web server Compression encoding type.	Content-Encoding: gzip
Content-Language	The language of the response body	Content-Language: en,zh
Content-Length	The length of the response body	Content-Length: 348
Content-Location	Request an alternative address for the resource	Content-Location: /index.htm
Content-MD5	Return the MD5 check value of the resource	Content-MD5: Q2hlY2sgSW50ZWdyaXR5IQ==
Content-Range	The byte position of this part in the entire return body	Content-Range: bytes 21010-47021/47022
Content-Type	Return content MIME type	Content-Type: text/html; charset=utf-8
Date	The time when the original server message was sent	Date: Tue, 15 Nov 2010 08:12:31 GMT
ETag	Request The current value of the variable's entity tag	ETag: "737060cd8c284d8af7ad3082f209582d"
Expires	The date and time the response expires	Expires: Thu, 01 Dec 2010 16:00:00 GMT
Last-Modified	The last modified time of the requested resource	Last-Modified: Tue, 15 Nov 2010 12:45:26 GMT
Location	Used to redirect the receiver to the location of the non-requested URL to complete the request or identify a new one Resource	Location: http://www.zcmhi.com/archives/94.html
Pragma	includes implementation specific directives which can be applied to any receiver on the response chain	Pragma: no- cache
Proxy-Authenticate	It indicates the authentication scheme and parameters that can be applied to the proxy on that URL	Proxy-Authenticate: Basic
refresh	Applies to redirects or when a new resource is created , redirect after 5 seconds (proposed by Netscape, supported by most browsers)	Refresh: 5; url= http://www.zcmhi.com/archives/94.html
Retry-After	If the entity is temporarily unavailable, notify the client to try again after the specified time	Retry-After: 120
Server	web server software name	Server: Apache/1.3.27 (Unix ) (Red-Hat/Linux)
Set-Cookie	Set Http Cookie	Set-Cookie: UserID=JohnDoe; Max-Age=3600; Version=1
Trailer	Point out the header field The tail of chunked transfer-encoding exists	Trailer: Max-Forwards
Transfer-Encoding	File Transfer-Encoding	Transfer-Encoding: chunked
Vary	tells the downstream proxy whether to use a cached response or from the original Server Request	Vary: *
Via	tells the proxy where the client response was sent	Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1)
Warning	Warning Entity Possible Problems	Warning: 199 Miscellaneous warning
WWW-Authenticate	Indicates the authorization scheme that the client requesting entity should use	WWW-Authenticate: Basic

Original text http://blog. csdn.net/wyqwclsn/article/details/41082083

The above introduces the detailed explanation of the example of setting the http message header by the PHP header function, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.