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PHP中如何使用header发送头部信息

2007年04月30日 来源:互联网 浏览次数: 字号:[ ]
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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