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php爱好者> php文档>PHP中如何使用header发送头部信息

PHP中如何使用header发送头部信息

时间:2006-02-11  来源:bingkafei


在照彭武兴先生的《PHP BIBLE》中所述,header可以送出Status标头,如

就可以让用户浏览器出现文件找不到的404错误,但是我试了这样是不行的。
后来我到w3.org上查了http的相关资料,终于试出来了如何Header出状态代码(Status),与大家分享。
其实应该是这样的:
Header("http/1.1 403 Forbidden");
?>
第一部分为HTTP协议的版本(HTTP-Version)
第二部分为状态代码(Status)
第三部分为原因短语(Reason-Phrase)
三部分中间用一个空格分开,且中间不能有回车,第一部分和第二部分是必需的,第三部分则是给人看的,可写可不写甚至乱写。
还有,这一句的输出必须在Html文件的第一行。
下面我给出各代码所代表的意思(是从w3.org上查到的,够权威了):
  * 1xx: Informational - Request received, continuing process
  * 2xx: Success - The action was successfully received, understood,
  and accepted
  * 3xx: Redirection - Further action must be taken in order to
  complete the request
  * 4xx: Client Error - The request contains bad syntax or cannot be
  fulfilled
  * 5xx: Server Error - The server failed to fulfill an apparently
  valid request
       | "100" ; Continue
       | "101" ; Switching Protocols
       | "200" ; OK
       | "201" ; Created
       | "202" ; Accepted
       | "203" ; Non-Authoritative Information
       | "204" ; No Content
       | "205" ; Reset Content
       | "206" ; Partial Content
       | "300" ; Multiple Choices
       | "301" ; Moved Permanently
       | "302" ; Moved Temporarily
       | "303" ; See Other
       | "304" ; Not Modified
       | "305" ; Use Proxy
       | "400" ; Bad Request
       | "401" ; Unauthorized
       | "402" ; Payment Required
       | "403" ; Forbidden
       | "404" ; Not Found
       | "405" ; Method Not Allowed
       | "406" ; Not Acceptable
       | "407" ; Proxy Authentication Required
       | "408" ; Request Time-out
       | "409" ; Conflict
       | "410" ; Gone
       | "411" ; Length Required
       | "412" ; Precondition Failed
       | "413" ; Request Entity Too Large
       | "414" ; Request-URI Too Large
       | "415" ; Unsupported Media Type
       | "500" ; Internal Server Error
       | "501" ; Not Implemented
       | "502" ; Bad Gateway
       | "503" ; Service Unavailable
       | "504" ; Gateway Time-out
       | "505" ; HTTP Version not supported


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