smarty/docs/designers/language-builtin-functions/language-function-capture.md

{capture}

{capture} is used to collect the output of the template between the tags into a variable instead of displaying it. Any content between {capture name='foo'} and {/capture} is collected into the variable specified in the name attribute.

The captured content can be used in the template from the variable $smarty.capture.foo where "foo" is the value passed in the name attribute. If you do not supply the name attribute, then "default" will be used as the name ie $smarty.capture.default.

{capture}'s can be nested.

Attributes:

Attribute Name Type Required Default Description

---

    name        string     Yes       *n/a*   The name of the captured block
   assign       string      No       *n/a*   The variable name where to assign the captured output to
   append       string      No       *n/a*   The name of an array variable where to append the captured output to

Option Flags:

Name    Description

---

nocache Disables caching of this captured block

{* we don't want to print a div tag unless content is displayed *}
{capture name="banner"}
{capture "banner"} {* short-hand *}
  {include file="get_banner.tpl"}
{/capture}

{if $smarty.capture.banner ne ""}
<div id="banner">{$smarty.capture.banner}</div>
{/if}

This example demonstrates the capture function.

{capture name=some_content assign=popText}
{capture some_content assign=popText} {* short-hand *}
The server is {$my_server_name|upper} at {$my_server_addr}<br>
Your ip is {$my_ip}.
{/capture}
<a href="#">{$popText}</a>

This example also demonstrates how multiple calls of capture can be used to create an array with captured content.

{capture append="foo"}hello{/capture}I say just {capture append="foo"}world{/capture}
{foreach $foo as $text}{$text} {/foreach}

The above example will output:

I say just hello world

See also $smarty.capture, {eval}, {fetch}, fetch() and {assign}.