所以我将一个PHP stdClass（）对象传递给Smarty，它看起来像这样，例如：
stdClass Object
(
[1] => stdClass Object
(
[id] => 1
[children] => stdClass Object
(
[4123] => stdClass Object
(
[id] => 4123
[children] => stdClass Object
(
[221] => stdClass Object
(
[id] => 221
[children] => stdClass Object
(
)
),
[55] => stdClass Object
(
[id] => 55
[children] => stdClass Object
(
)
)
)
),
[666] => stdClass Object
(
[id] => 666
[children] => stdClass Object
(
)
)
)
)
)
每个对象都有一个 id 和子对象，它们具有相同的结构。如何像这样递归输出所有 id-s：1, 4123, 221, 55, 666使用 Smarty ？
递
归数据处理有两个选项。首选的解决方案是使用 {function}。大致如下：
{function name=printId comma=false data=false}
{if $comma}, {/if}{$object->id}
{foreach $data.children as $object}
{printId data=$object comma=true}
{/foreach}
{/function}
{* invoke with: *}
{printId data=$yourObjectStructure}
另一个 - Smarty2 兼容 - 选项正在使用 {include}：
{* recursive-thing.tpl *}
{if $comma}, {/if}{$object->id}
{foreach from=$data.children item="object"}
{include file="recursive-thing.tpl" data=$object comma=true}
{/foreach}
{* invoke with: *}
{include file="recursive-thing.tpl" data=$yourObjectStructure}