HTML Templating Like PHP Templating
Solution 1:
HTML has no templating capability.
It has frames and iframes, but they come with significant drawbacks and only provide include functionality.
You should use a proper templating language. This can run on the client, server or build system.
I'd recommend against running it on the client. It adds an unnecessary dependency that your visitors (including search engine indexers) have to fulfil.
PHP will do the job (it straddles the border of being a programming language and a templating language). My personal preference is for Template-Toolkit.
TT can run in your build system via the ttree utility, or you can run it on your server. There is a tutorial covering how to build websites using it.
If, and when, you move to building websites with more demanding server side requirements, then you can continue to use TT as it is supported but most of the web frameworks in Perl land (e.g. the dancer module for TT and the catalyst module for TT. Note that those links go to the hardcode documentation for the modules, and if you plan to use one of the frameworks you should start with a higher level tutorial)
Solution 2:
HTML is a markup language - in other words it can mark up text to display to the user.
It cannot do any of the dynamic type functions you might need in a web application - like updating the date, for example.
So it is best to think of HTML documents, just like you might think of a Word document, a load of text that is displayed to the user.
As soon as you want to start using templates to display dynamic information (stuff from a database, maybe), you're going to need a scripting language. PHP is good for this.
I've had good experience with Smarty - a php templating engine.
On a side note, learning a framework can be a really useful part of the learning the basics. Most frameworks force you to do things in a good way, and sometimes the things they make you write in your code may seem a bit strange or illogical, suddenly one day the penny will drop and you'll realise why what you've been forced to do is sound from an engineering point of view.
Solution 3:
You can look @ javascript templating. I suggest you to give a try to http://mustache.github.com/
Solution 4:
Modest is a template system that's supposed to look and feel like HTML.
Solution 5:
The most common way to do HTML templating with PHP, is to use one of these popular templating engines :
Alternatively, you can just put placeholders in your HTML that look something like <% variablename %>. Just load your HTML, do a regex do find all placeholders and replace them with the corresponding variables.
Alternatively, you can load your HTML, parse it as a DOM document and then modify your DOM. I created the library DOM Query to be able to do this with a jQuery-like syntax, but you could use vanilla PHP or one of several other libraries as well.
Alternatively, you can do some HTML templating in frontend with JavaScript. If you want to do HTML templating both on frontend and backend, you might want to consider using Mustache, because Mustache templates can be used both in frontend (with JavaScript) and in backend (with PHP).
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