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Used to insert the value of an environmental variable, Web Server variable or time and date stamp. #### Syntax <!-- #echo var = "variable" --> #### Parameters
Variable | Description
ALL_HTTP | All HTTP headers. Not implemented.
ALL_RAW | All HTTP headers raw. Not implemented.
AUTH_TYPE | The type of authentication used.
AUTH_PASSWORD | The password entered for client authentication.
AUTH_USER | The username entered for client authentication.
CERT_* | Certificate specific variables. Not implemented.
CONTENT_ENCODING | The type of encoding used by the client on the data sent.
CONTENT_LENGTH | The number of bytes sent by the client.
CONTENT_TYPE | The type of content send by the client. Normally mime-type application/x-www-form-urlencoded for forms.
DOCUMENT_NAME | The current file name. Not available in CGI only in SSI.
DOCUMENT_URI | The virtual path of the current document. Not available in CGI only in SSI.
DATE_GMT | The current date in Greenwich Mean Time (GMT). Not available in CGI only in SSI.
DATE_LOCAL | The current date in local time zone. Not available in CGI only in SSI.
GATEWAY_INTERFACE | The name and revision of the gateway interface being used. Normally CGI/1.1. Not available in SSI only in CGI.
HTTP_ACCEPT | A comma delimited list of mime-types which the client accepts.
HTTP_ACCEPT_CHARSET | A comma delimited list of the character encodings the client accepts.
HTTP_ACCEPT_ENCODING | A comma delimited list of the types of encodings the client accepts.
HTTP_ACCEPT _LANGUAGE | A comma delimited list of the languages which the client accepts. Normally en-us for the United States English.
HTTP_AUTHORIZATION | Contains Base-64 encoded username, password, scheme and realm sent by the client.
HTTP_CONNECTION | The type of HTTP connection. Normally Keep-Alive.
HTTP_COOKIE | The cookie data sent by the client.
HTTP_HOST | The name of the host server the request was sent to.
HTTP_IF_MATCH | The client requests that data be sent if the any of the entity tags match.
HTTP_IF_MODIFIED _SINCE | The clients requests that data be sent if the file date is later than the date in Greenwich Mean Time (GMT).
HTTP_IF_NONE_MATCH | The client requests that data be sent if the none of the entity tags match.
HTTP_IF_RANGE | The client requests that a range of data be sent if available.
HTTP_IF_UNMODIFIED_SINCE | The clients requests that data be sent if the file date is the same as the date in Greenwich Mean Time (GMT).
HTTP_RANGE | The client requests that a range of data be sent.
HTTP_REFERER | The URL from which the request was made.
HTTP_USER_AGENT | The name of the client browser making the request.
HTTPS | Returns ON is request is over a secure socket (SSL) or returns OFF if not. Not implemented.
HTTPS_* | SSL specific variables. Not implemented.
INSTANCE_ID | The current instance id.
LAST_MODIFIED | The date that the current document was last modified. Not available in CGI only in SSI.
LOCAL_ADDR | The IP address of the server the request was sent to.
PATH_INFO | additional path information sent by the client.
PATH_TRANSLATED | The physical translated path of the request.
QUERY_STRING | Any raw information sent after ? in the HTTP request made by the client.
QUERY_STRING _UNESCAPED | Any information sent after the ? in the HTTP request made by the client. Not available in CGI only in SSI.
REMOTE_ADDR | The IP address of the client making the request.
REMOTE_HOST | The name of the client making the request.
REMOTE_USER | The username entered for client authentication.
REQUEST_METHOD | The request method being made. Normally [ GET | POST ].
REQUEST_URI | The Universal Resource Identifier (URI) requested by the client.
ROOT | The base directory for requested documents. Not available in CGI only in SSI.
SCRIPT_NAME | The virtual path of the SSI being evaluated.
SERVER_NAME | The name of the server the request was sent to.
SERVER_PORT | The port number the request was sent to. Normally port 80.
SERVER_PORT_SECURE | Whether the request is secure. 1 if the request is secure. 0 if the request is not secure.
SERVER_PROTOCOL | The name and revision of the request protocol being used. Normally HTTP/1.1.
SERVER_SOFTWARE | The name and revision of the server software being used.
URL | The base portion of the requested URL. Not available in CGI only in SSI.
Additionally environmental variables are available. #### Examples <!-- #echo var = "DOCUMENT_NAME" -->
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