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HomeBackend DevelopmentPHP TutorialDetailed explanation of the example of setting http header using PHP header function, _PHP tutorial

Detailed explanation of the example of setting http header using PHP header function,

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

#Attachment: Detailed explanation of HTTP header

Requests section

Header 解释 示例
Accept 指定客户端能够接收的内容类型 Accept: text/plain, text/html
Accept-Charset 浏览器可以接受的字符编码集。 Accept-Charset: iso-8859-5
Accept-Encoding 指定浏览器可以支持的web服务器返回内容压缩编码类型。 Accept-Encoding: compress, gzip
Accept-Language 浏览器可接受的语言 Accept-Language: en,zh
Accept-Ranges 可以请求网页实体的一个或者多个子范围字段 Accept-Ranges: bytes
Authorization HTTP授权的授权证书 Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
Cache-Control 指定请求和响应遵循的缓存机制 Cache-Control: no-cache
Connection 表示是否需要持久连接。(HTTP 1.1默认进行持久连接) Connection: close
Cookie HTTP请求发送时,会把保存在该请求域名下的所有cookie值一起发送给web服务器。 Cookie: $Version=1; Skin=new;
Content-Length 请求的内容长度 Content-Length: 348
Content-Type 请求的与实体对应的MIME信息 Content-Type: application/x-www-form-urlencoded
Date 请求发送的日期和时间 Date: Tue, 15 Nov 2010 08:12:31 GMT
Expect 请求的特定的服务器行为 Expect: 100-continue
From 发出请求的用户的Email From: user@email.com
Host 指定请求的服务器的域名和端口号 Host: www.zcmhi.com
If-Match 只有请求内容与实体相匹配才有效 If-Match: “737060cd8c284d8af7ad3082f209582d”
If-Modified-Since 如果请求的部分在指定时间之后被修改则请求成功,未被修改则返回304代码 If-Modified-Since: Sat, 29 Oct 2010 19:43:31 GMT
If-None-Match 如果内容未改变返回304代码,参数为服务器先前发送的Etag,与服务器回应的Etag比较判断是否改变 If-None-Match: “737060cd8c284d8af7ad3082f209582d”
If-Range 如果实体未改变,服务器发送客户端丢失的部分,否则发送整个实体。参数也为Etag If-Range: “737060cd8c284d8af7ad3082f209582d”
If-Unmodified-Since 只在实体在指定时间之后未被修改才请求成功 If-Unmodified-Since: Sat, 29 Oct 2010 19:43:31 GMT
Max-Forwards 限制信息通过代理和网关传送的时间 Max-Forwards: 10
Pragma 用来包含实现特定的指令 Pragma: no-cache
Proxy-Authorization 连接到代理的授权证书 Proxy-Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
Range 只请求实体的一部分,指定范围 Range: bytes=500-999
Referer 先前网页的地址,当前请求网页紧随其后,即来路 Referer: http://www.zcmhi.com/archives/71.html
TE 客户端愿意接受的传输编码,并通知服务器接受接受尾加头信息 TE: trailers,deflate;q=0.5
Upgrade 向服务器指定某种传输协议以便服务器进行转换(如果支持) Upgrade: HTTP/2.0, SHTTP/1.3, IRC/6.9, RTA/x11
User-Agent User-Agent的内容包含发出请求的用户信息 User-Agent: Mozilla/5.0 (Linux; X11)
Via 通知中间网关或代理服务器地址,通信协议 Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1)
Warning 关于消息实体的警告信息 Warn: 199 Miscellaneous warning

Responses section

Header 解释 示例
Accept-Ranges 表明服务器是否支持指定范围请求及哪种类型的分段请求 Accept-Ranges: bytes
Age 从原始服务器到代理缓存形成的估算时间(以秒计,非负) Age: 12
Allow 对某网络资源的有效的请求行为,不允许则返回405 Allow: GET, HEAD
Cache-Control 告诉所有的缓存机制是否可以缓存及哪种类型 Cache-Control: no-cache
Content-Encoding web服务器支持的返回内容压缩编码类型。 Content-Encoding: gzip
Content-Language 响应体的语言 Content-Language: en,zh
Content-Length 响应体的长度 Content-Length: 348
Content-Location 请求资源可替代的备用的另一地址 Content-Location: /index.htm
Content-MD5 返回资源的MD5校验值 Content-MD5: Q2hlY2sgSW50ZWdyaXR5IQ==
Content-Range 在整个返回体中本部分的字节位置 Content-Range: bytes 21010-47021/47022
Content-Type 返回内容的MIME类型 Content-Type: text/html; charset=utf-8
Date 原始服务器消息发出的时间 Date: Tue, 15 Nov 2010 08:12:31 GMT
ETag 请求变量的实体标签的当前值 ETag: “737060cd8c284d8af7ad3082f209582d”
Expires 响应过期的日期和时间 Expires: Thu, 01 Dec 2010 16:00:00 GMT
Last-Modified 请求资源的最后修改时间 Last-Modified: Tue, 15 Nov 2010 12:45:26 GMT
Location 用来重定向接收方到非请求URL的位置来完成请求或标识新的资源 Location: http://www.zcmhi.com/archives/94.html
Pragma 包括实现特定的指令,它可应用到响应链上的任何接收方 Pragma: no-cache
Proxy-Authenticate 它指出认证方案和可应用到代理的该URL上的参数 Proxy-Authenticate: Basic
refresh 应用于重定向或一个新的资源被创造,在5秒之后重定向(由网景提出,被大部分浏览器支持)

 

Refresh: 5; url=

http://www.zcmhi.com/archives/94.html

Retry-After 如果实体暂时不可取,通知客户端在指定时间之后再次尝试 Retry-After: 120
Server web服务器软件名称 Server: Apache/1.3.27 (Unix) (Red-Hat/Linux)
Set-Cookie 设置Http Cookie Set-Cookie: UserID=JohnDoe; Max-Age=3600; Version=1
Trailer 指出头域在分块传输编码的尾部存在 Trailer: Max-Forwards
Transfer-Encoding 文件传输编码 Transfer-Encoding:chunked
Vary 告诉下游代理是使用缓存响应还是从原始服务器请求 Vary: *
Via 告知代理客户端响应是通过哪里发送的 Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1)
Warning 警告实体可能存在的问题 Warning: 199 Miscellaneous warning
WWW-Authenticate 表明客户端请求实体应该使用的授权方案 WWW-Authenticate: Basic
Original text http://blog.csdn.net/wyqwclsn/article/details/41082083

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