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Templates, TVs, and Snippets

See how templates, TVs, chunks, snippets, and plugins divide structure, data, presentation, and logic in real projects.

Template

A template is the page-level structure. In classic Evolution it is mostly HTML with Evolution tags. In Evo 3 it may also be backed by Blade views.

<!doctype html>
<html lang="[(lang_code)]">
{{head_tags}}
<body>
  {{site_header}}
  [*content*]
</body>
</html>

TV (Template Variable)

A TV stores extra structured data for a resource. Typical TVs are subtitle, price, image, date, file, color, relation, or repeated field groups.

<h1>[*pagetitle*]</h1>
<p class="subtitle">[*subtitle*]</p>
<img src="[*hero_image*]" alt="[*pagetitle*]">

Chunk

A chunk is a reusable fragment of markup or text. Chunks are used for headers, cards, mails, listings, and other repeating output.

{{site_header}}

Snippet

A snippet is PHP logic that returns output. Classic listing, forms, navigation, and filtering in Evolution often depend on snippets.

[[DocLister? &parents=`12` &tpl=`news_row` ]]
[[Wayfinder? &startId=`0` &level=`2` ]]
[[FormLister? &formid=`feedback` &controller=`Form` ]]

How They Work Together

  • the template defines the page skeleton
  • TVs store structured values for that template
  • chunks hold reusable presentation fragments
  • snippets query, process, and render dynamic data

Classic Helper Extras

  • PHx extends tag output with modifiers and conditions
  • ManagerManager reshapes manager edit forms for editors
  • multifields, multiTV, and cfgTv add field-level modeling help

See also Cheat Sheet, Lists, Forms, and Search, and Legacy Extras.

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Resources

Understand how resources are stored, how the tree works, and how SiteContent can be queried in code.
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Media and Files

Organize uploaded files and media fields so editors stay fast and templates stay predictable.