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function hook_extension in Drupal 10

Same name and namespace in other branches
  1. 8 core/lib/Drupal/Core/Render/theme.api.php \hook_extension()
  2. 9 core/lib/Drupal/Core/Render/theme.api.php \hook_extension()

Declare a template file extension to be used with a theme engine.

This hook is used in a theme engine implementation in the format of ENGINE_extension().

Return value

string The file extension the theme engine will recognize.

Related topics

2 functions implement hook_extension()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

nyan_cat_extension in core/modules/system/tests/themes/engines/nyan_cat/nyan_cat.engine
Implements hook_extension().
twig_extension in core/themes/engines/twig/twig.engine
Implements hook_extension().

File

core/lib/Drupal/Core/Render/theme.api.php, line 748
Hooks and documentation related to the theme and render system.

Code

function hook_extension() {

  // Extension for template base names in Twig.
  return '.html.twig';
}