ServerVariables 变量

本文深入解读服务器变量,重点讲解如何获取客户端发送的所有HTTP头部信息,并详细解析了ALL_HTTP、ALL_RAW、AUTH_PASSWORD等关键变量的作用与使用方法。

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服务器变量

变量描述
ALL_HTTPReturns all HTTP headers sent by the client. Always prefixed with HTTP_ and capitalized
ALL_RAWReturns all headers in raw form
APPL_MD_PATHReturns the meta base path for the application for the ISAPI DLL
APPL_PHYSICAL_PATHReturns the physical path corresponding to the meta base path
AUTH_PASSWORDReturns the value entered in the client's authentication dialog
AUTH_TYPEThe authentication method that the server uses to validate users
AUTH_USERReturns the raw authenticated user name
CERT_COOKIEReturns the unique ID for client certificate as a string
CERT_FLAGSbit0 is set to 1 if the client certificate is present and bit1 is set to 1 if the cCertification authority of the client certificate is not valid
CERT_ISSUERReturns the issuer field of the client certificate
CERT_KEYSIZEReturns the number of bits in Secure Sockets Layer connection key size
CERT_SECRETKEYSIZEReturns the number of bits in server certificate private key
CERT_SERIALNUMBERReturns the serial number field of the client certificate
CERT_SERVER_ISSUERReturns the issuer field of the server certificate
CERT_SERVER_SUBJECTReturns the subject field of the server certificate
CERT_SUBJECTReturns the subject field of the client certificate
CONTENT_LENGTHReturns the length of the content as sent by the client
CONTENT_TYPEReturns the data type of the content
GATEWAY_INTERFACEReturns the revision of the CGI specification used by the server
HTTP_<HeaderName>Returns the value stored in the header HeaderName
HTTP_ACCEPTReturns the value of the Accept header
HTTP_ACCEPT_LANGUAGEReturns a string describing the language to use for displaying content
HTTP_COOKIEReturns the cookie string included with the request
HTTP_REFERERReturns a string containing the URL of the page that referred the request to the current page using an <a> tag. If the page is redirected, HTTP_REFERER is empty
HTTP_USER_AGENTReturns a string describing the browser that sent the request
HTTPSReturns ON if the request came in through secure channel or OFF if the request came in through a non-secure channel
HTTPS_KEYSIZEReturns the number of bits in Secure Sockets Layer connection key size
HTTPS_SECRETKEYSIZEReturns the number of bits in server certificate private key
HTTPS_SERVER_ISSUERReturns the issuer field of the server certificate
HTTPS_SERVER_SUBJECTReturns the subject field of the server certificate
INSTANCE_IDThe ID for the IIS instance in text format
INSTANCE_META_PATHThe meta base path for the instance of IIS that responds to the request
LOCAL_ADDRReturns the server address on which the request came in
LOGON_USERReturns the Windows account that the user is logged into
PATH_INFOReturns extra path information as given by the client
PATH_TRANSLATEDA translated version of PATH_INFO that takes the path and performs any necessary virtual-to-physical mapping
QUERY_STRINGReturns the query information stored in the string following the question mark (?) in the HTTP request
REMOTE_ADDRReturns the IP address of the remote host making the request
REMOTE_HOSTReturns the name of the host making the request
REMOTE_USERReturns an unmapped user-name string sent in by the user
REQUEST_METHODReturns the method used to make the request
SCRIPT_NAMEReturns a virtual path to the script being executed
SERVER_NAMEReturns the server's host name, DNS alias, or IP address as it would appear in self-referencing URLs
SERVER_PORTReturns the port number to which the request was sent
SERVER_PORT_SECUREReturns a string that contains 0 or 1. If the request is being handled on the secure port, it will be 1. Otherwise, it will be 0
SERVER_PROTOCOLReturns the name and revision of the request information protocol
SERVER_SOFTWAREReturns the name and version of the server software that answers the request and runs the gateway
URLReturns the base portion of the URL

转载于:https://www.cnblogs.com/pxsbest/archive/2012/10/26/2741610.html

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