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Html ssi


Learn html ssi codes and tags using the sample below.

Html ssi

SSI - Server Side Includes

CODE
<!--#include file="/relative/path/to/file.txt"-->

<!--#include virtual="/mapped/path/to/file.txt"-->

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

<!--#exec cmd="/virtual/path/to/some.exe"-->
Explanation
Examples of usage:
<HTML>

  <HEAD></HEAD>

    <BODY>

    <!--#include virtual="/corporate-header.txt"-->

    Welcome, <!--#echo var="REMOTE_HOST"-->!<BR>

    I see you came here from

    "<!--#echo var="HTTP_REFERRER"-->!"<BR>

    You are the

    <!--#exec cgi="/cgi-bin/hit-counter.cgi"-->th

    person to view this page.

    </BODY>

</HTML>

BROWSER

Acme Web Design

Welcome, Visitors_computer_name!
I see you came here from "http://www.yahoo.com/search.htm"
You are the 453,698th person to view this page.

The file "coporate-header.txt", in the sample case, would only contain
<H1>Acme Web Design</H1>
to produce the results above. Perhaps you can see the power of this. If all your web pages use server included headers, you only would need to update one file, "corporate-header.txt", to update the entire web site.

A word of caution, however. If your web site depends on server-side include content and it fails, your visitors may see an error message in place of your logo! Most SSI failure is caused by the content to be included, not the server.

Explanation

Syntax: <!--#command argument="/path/file"-->
For server-side includes to work, the ISP hosting your web site must first have their web server configured to support them. Next, any html file containing server-side include code must be named with one of the follwing extensions:
.shtml (for UNIX based web servers)
.asp (for WindowsNT web servers)
The file extension tells the web server to "read" the file before sending it to the browser and replace any include statements with the "content" specified, using the command specified. If the "content" is executable, the server will include the output. WebCreator cannot preview any SSI content. You will have to place your files on a web server to test them. Back to top

HTTP Server Variables

The list of available HTTP Server Variables can differ from server to server (like HTTP_REFERER and HTTP_REFERRER). It depends on which web server software being used and how it is configured. As such, you will have to consult your ISP to find out if they are supporting server-side includes and which HTTP Server Variables are available. Here are two examples:

HTTP SERVER VARIABLES (Microsoft IIS 3.0)
CONTENT_TYPE The nature of this file. (MIME-type, i.e. text/html)
GATEWAY_INTERFACE If this file was retrieved with a form post, this is the name of the method used. Commonly CGI/1.1
PATH_INFO "Virtual" mapped path of this file on the server.
PATH_TRANSLATED Actual physical path of this file on the server.
QUERY_STRING If this page was retrieved through a form post, this is what was suffixed to the URL when sent.
REMOTE_ADDR The visitor's IP address.
REMOTE_HOST The visitor's computer-name.
SERVER_NAME The name of the computer this page originated from.
SERVER_PORT The "port" used to retrieve this file. Usually :80.
SERVER_PROTOCOL Protocol used to retrieve this file. Usually HTTP/1.0.
SERVER_SOFTWARE The web server software version info.
URL The URL of this file.
HTTP_HOST The host/domain name this page came from.
HTTP_REFERER The page your visitor clicked through to get here.
HTTP_USER_AGENT Your visitor's browser information.
HTTP_COOKIE The name and contents of any cookie you've placed on the visitor's computer.

And a second example:

ENVIRONMENT VARIABLES (NCSA HTTPd 1.1)
DOCUMENT_NAME The current filename.
DOCUMENT_URI The virtual path to this document (like /path/to/file.shtml).
QUERY_STRING_UNESCAPED The unescaped version of any search query the client sent, with all shell-special characters escaped with \.
DATE_LOCAL The current date, local time zone.
DATE_GMT Same as DATE_LOCAL but in Greenwich mean time.
LAST_MODIFIED The last modification date of this file.

Html ssi source code

 

Html ssi tutorial

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