SSI - Echo Directive

You can use the ECHO directive to display specific information on your web pages. This is very simple and extremely efficient. Many JavaScript scripts contain line after line of code to do what can be done in SSI in one trivial statement.

<!--#echo var="DOCUMENT_NAME" -->

All of the ECHO directives which may be displayed are shown in the table below.

Server Environment Variables Which Can Be Displayed Via ECHO
Directive	Description	Real Example
AUTH_TYPE	client authorization method if any
CONTENT_LENGTH	size of input posted from client	0
CONTENT_TYPE	MIME type of content
DATE_GMT	The current GMT (greenwich, UK) can be formatted using #config	Sunday November 02 2008
DATE_LOCAL	current time/date, can be formatted using #config	Sunday November 02 2008
DOCUMENT_NAME	document name that was requested
DOCUMENT_URI	URL of the document	/sites/webhelpinghand.com/ssi001.shtml
LAST_MODIFIED	document modified date, can be formatted using #config	Wednesday October 31 2007
PAGE_COUNT	number of accesses to current document since server was brought on line
HTTP_REFERER	URL of the document the client came from	http://www.webhelpinghand.com/index.asp
REMOTE_ADDR	Numeric IP address of the client	71.110.245.200
REMOTE_HOST	domain name of the client (DNS option must be active on server)	71.110.245.200
REMOTE_USER	ID of user, rarely ever found
REQUEST_METHOD	HTTP method: GET OR POST	GET
SERVER_NAME	server hostname	www.webhelpinghand.com
SERVER_PORT	the port used by httpd (usually 80)	80
SERVER_PROTOCOL	Which version of Httpd compliance	HTTP/1.1
SERVER_SOFTWARE	The name of the server software, i.e., apache 1.2.5	Microsoft-IIS/6.0
TOTAL_HITS	total pages served by server since brought on line

The way that the date and time are displayed can be precisely controlled using the "timefmt" feature of the "config" directive. All you need to do is include the "timefmt" within the directive, as shown below.

which displays as:

Sunday

You can use any of the format codes from the table below in this manner.

Date Format Codes
Code	Description
%a	abbreviated weekday name
%A	full weekday name
%b	abbreviated month name
%B	full month name
%c	locale's appropriate date and time
%C	default date and time format
%d	day of month - 01 to 31
%D	date as %m/%d/%y
%e	day of month - 1 to 31
%h	abbreviated month name (alias for %b)
%H	hour - 00 to 23
%I	hour - 01 to 12
%j	day of year - 001 to 366
%m	month of year - 01 to 12
%M	minute - 00 to 59
%n	insert a newline character
%p	string containing AM or PM
%r	time as %I:%M:%S %p
%R	time as %H:%M
%S	second - 00 to 61
%t	insert a tab character
%T	time as %H:%M:%S
%U	week number of year - 00 to 53
%w	day of week - Sunday=0
%W	week number of year - 00 to 53
%x	Country-specific date format
%X	Country-specific time format
%y	2 digit year - YY
%Y	4 digit year - YYYY
%Z	timezone name

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Displaying Information Using ECHO

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