Simplifying your site with Server Side Includes
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.)
Basic Footer Include File footer.html
01 <div id="footer"> 02 <p><a href="mailto:email@example.com">website contact</a></p> 03 <p><a href="http://www.mysite.com">return to homepage</a></p> 04 </div>
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