Home >Backend Development >PHP Tutorial >PHP header函数设置http报文头示范详解
PHP header函数设置http报文头示例详解
<span class="comment">//定义编码header( <span class="string">'Content-Type:text/html;charset=utf-8 '); <span class="comment">//Atomheader(<span class="string">'Content-type: application/atom+xml'); <span class="comment">//CSSheader(<span class="string">'Content-type: text/css'); <span class="comment">//Javascriptheader(<span class="string">'Content-type: text/javascript'); <span class="comment">//JPEG Imageheader(<span class="string">'Content-type: image/jpeg'); <span class="comment">//JSONheader(<span class="string">'Content-type: application/json'); <span class="comment">//PDFheader(<span class="string">'Content-type: application/pdf'); <span class="comment">//RSSheader(<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">//XMLheader(<span class="string">'Content-type: text/xml'); <span class="comment">//200 OKheader(<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), etcheader(<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 pastheader(<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 />
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: [email protected] |
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 |
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 |