e544ed6d9a
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.
202 lines
4.7 KiB
Markdown
202 lines
4.7 KiB
Markdown
# {block}
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`{block}` is used to define a named area of template source for template
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inheritance. For details see section of [Template
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Inheritance](../../programmers/advanced-features/advanced-features-template-inheritance.md).
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The `{block}` template source area of a child template will replace the
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corresponding areas in the parent template(s).
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Optionally `{block}` areas of child and parent templates can be merged
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into each other. You can append or prepend the parent `{block}` content
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by using the `append` or `prepend` option flag with the child's `{block}`
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definition. With `{$smarty.block.parent}` the `{block}` content of
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the parent template can be inserted at any location of the child
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`{block}` content. `{$smarty.block.child}` inserts the `{block}` content
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of the child template at any location of the parent `{block}`.
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`{blocks}'s` can be nested.
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## Attributes
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| Attribute Name | Required | Description |
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|----------------|----------|----------------------------------------------------------------------------------------------------------------------|
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| name | yes | The name of the template source block |
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| assign | no | The name of variable to assign the output of the block to. |
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> **Note**
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>
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> The assign attribute only works on the block that actually gets executed, so you may need
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> to add it to each child block as well.
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## Option Flags (in child templates only):
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| Name | Description |
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|---------|-----------------------------------------------------------------------------------------|
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| append | The `{block}` content will be appended to the content of the parent template `{block}` |
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| prepend | The `{block}` content will be prepended to the content of the parent template `{block}` |
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| hide | Ignore the block content if no child block of same name is existing. |
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| nocache | Disables caching of the `{block}` content |
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## Examples
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parent.tpl
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```smarty
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<html>
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<head>
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<title>{block name="title"}Default Title{/block}</title>
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<title>{block "title"}Default Title{/block}</title> {* short-hand *}
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</head>
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</html>
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```
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child.tpl
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```smarty
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{extends file="parent.tpl"}
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{block name="title"}
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Page Title
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{/block}
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```
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The result would look like
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```html
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<html>
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<head>
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<title>Page Title</title>
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</head>
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</html>
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```
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parent.tpl
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```smarty
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<html>
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<head>
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<title>{block name="title"}Title - {/block}</title>
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</head>
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</html>
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```
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child.tpl
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```smarty
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{extends file="parent.tpl"}
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{block name="title" append}
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Page Title
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{/block}
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```
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The result would look like
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```html
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<html>
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<head>
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<title>Title - Page Title</title>
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</head>
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</html>
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```
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parent.tpl
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```smarty
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<html>
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<head>
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<title>{block name="title"} is my title{/block}</title>
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</head>
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</html>
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```
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child.tpl
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```smarty
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{extends file="parent.tpl"}
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{block name="title" prepend}
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Page Title
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{/block}
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```
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The result would look like
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```html
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<html>
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<head>
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<title>Page title is my titel</title>
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</head>
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</html>
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```
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parent.tpl
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```smarty
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<html>
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<head>
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<title>{block name="title"}The {$smarty.block.child} was inserted here{/block}</title>
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</head>
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</html>
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```
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child.tpl
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```smarty
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{extends file="parent.tpl"}
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{block name="title"}
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Child Title
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{/block}
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```
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The result would look like
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```html
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<html>
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<head>
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<title>The Child Title was inserted here</title>
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</head>
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</html>
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```
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parent.tpl
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```smarty
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<html>
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<head>
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<title>{block name="title"}Parent Title{/block}</title>
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</head>
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</html>
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```
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child.tpl
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```smarty
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{extends file="parent.tpl"}
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{block name="title"}
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You will see now - {$smarty.block.parent} - here
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{/block}
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```
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The result would look like
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```html
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<html>
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<head>
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<title>You will see now - Parent Title - here</title>
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</head>
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</html>
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```
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See also [Template
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Inheritance](../../programmers/advanced-features/advanced-features-template-inheritance.md),
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[`$smarty.block.parent`](../language-variables/language-variables-smarty.md#smartyblockparent-languagevariablessmartyblockparent),
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[`$smarty.block.child`](../language-variables/language-variables-smarty.md#smartyblockchild-languagevariablessmartyblockchild), and
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[`{extends}`](./language-function-extends.md)
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