Simplifying your site with Server Side Includes
Inclusion
© Phaif, 123RF
Server Side Includes (SSIs) can save you time and make your website easier to maintain.
Most websites have a handful of elements that are common to all or most pages, such as headers, footers, and menus. Hard-coding these sections into each page means that if you ever make any changes, you have to edit every single page, which is very tedious and not a good use of your time. Server Side Includes (SSIs) are an easy way of writing HTML snippets once only and then including them in your pages with a single reference.
Writing the Include File
Before setting up the web server to handle SSIs, I'll start by defining some SSI content. Listing 1 shows a basic footer include file, containing just the footer information I want at the bottom of each page. (The styling is all in the CSS, which I'm not showing here – this is just the HTML logic. It is always good practice to separate content logic from presentation and styling.)
As shown in Listing 2, I find it best to create a directory for includes in the web server's root directory. This approach helps you keep track of the include files and avoid confusing them with your regular HTML files. An organized directory is particularly important for files that apply to the whole site; if you have includes that are specific to a particular subdirectory, you might want to keep them with that subdirectory.
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