September 2001
Intermediate to advanced
640 pages
31h 42m
English
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Chapter 18. Server Side Includes
In layperson’s terms, Server Side Includes (SSI) are special placeholders in an HTML document that the server replaces with actual data just before sending the final document to the browser. By the time the document gets to the browser, it looks just like any other HTML page (even if someone happens to “view source”), as though you typed the data into the HTML source by hand.
When the server looks through the file for placeholders (SSI commands), it is said to parse the file. The server then inserts the requested data, which could be anything from the current date and time to other HTML documents to the results of a CGI script. (The complete list of information available via Server Side Includes is listed later in this chapter.)
How SSI Is Used
SSI allows you to create the framework for pages that will be dynamically generated by the server. For the web author, this can be a powerful tool for managing site production and increasing efficiency. The following are just a few examples of the ways SSI can be used:
Placing elements that you use over and over again. If you have an element that appears on every page of your site, such as a complex navigational header, you can use a single SSI command that just sources it in instead. If you make changes to the header, such as changing a URL or a graphic, you need to make the change only once, and it will be updated automatically on all pages of your site.
Placing a constantly changing element on your ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.