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| 技术资料  > PHP技术 > 经典文章 : 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 March 23,2004 |  
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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