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flatpress/fp-includes/smarty-4.4.1/docs/designers/language-builtin-functions/language-function-extends.md
Fraenkiman e544ed6d9a Smatry Release 4.4.1 on Feb-2024 
Comparing changes: https://github.com/smarty-php/smarty/compare/v4.3.1...v4.4.1

It is noticeable that Smarty 4.3.1 does not officially support PHP 8.3. Is only supported with 4.4.0.

Remark:

During tests with Smarty 4.5.1, it was noticed that the following warning occurs:
Deprecated: Using the unregistered function "function_exists" in a template is deprecated and will be removed in a future version. Use Smarty::registerPlugin to explicitly register a custom modifier.

As of Smarty 5.X.X, templates must be revised again.
The Smarty release 5.0.2 is already officially available. However, integration into FlatPress is not entirely trivial.
2024-04-14 18:37:39 +02:00

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{extends}

{extends} tags are used in child templates in template inheritance for extending parent templates. For details see section of Template Inheritance.

  • The {extends} tag must be on the first line of the template.

  • If a child template extends a parent template with the {extends} tag it may contain only {block} tags. Any other template content is ignored.

  • Use the syntax for template resources to extend files outside the $template_dir directory.

Attributes

Attribute Required Description
file Yes The name of the template file which is extended

Note

When extending a variable parent like {extends file=$parent_file}, make sure you include $parent_file in the $compile_id. Otherwise, Smarty cannot distinguish between different $parent_files.

Examples

{extends file='parent.tpl'}
{extends 'parent.tpl'}  {* short-hand *}

See also Template Inheritance and {block}.