{foreach}is used to loop over an associative arrayas well a numerically-indexed array, unlike {section} which is for looping over numerically-indexed arrays only. The syntax for {foreach}is much easier than {section} , but as a tradeoff it can only be used for a single array. Every {foreach}tag must be paired with a closing {/foreach}tag.
{foreach} 用于像循环访问一个数字索引数组一样循环访问一个关联数组，与仅能访问数字索引数组的{section}不同，{foreach}的语法比 {section}的语法简单得多，但是作为一个折衷方案也仅能用于单个数组。每个{foreach}标记必须与关闭标记{/foreach}成对出现。
| Attribute Name属性名称 | Type类型 | Required必要 | Default默认值 | Description描述 |
|---|---|---|---|---|
| from | array数组 | Yes必要 | n/a | The array you are looping through循环访问的数组 |
| item | string字符串 | Yes必要 | n/a | The name of the variable that is the current element当前元素的变量名 |
| key | string字符串 | No可选 | n/a | The name of the variable that is the current key当前键名的变量名 |
| name | string字符 | No可选 | n/a | The name of the foreach loop for accessing foreach properties用于访问foreach属性的foreach循环的名称 |
Note: The nameattribute is only required when you want to access a {foreach} property, unlike {section} . Accessing a {foreach}property with nameundefined does not throw an error, but leads to unpredictable results instead.
注意：name属性仅在需要访问{foreach}属性时有效，与{section}不同。访问未定义name的{foreach}属性不会抛出一个错误，但将导致不可预知的结果。
Example 7-5. The item attribute 例 7-5. item属性
assign('myArray', $arr);?>Template to output $myArrayin an un-ordered list
用模板以无序列表输出$myArray
<ul>{foreach from=$myArray item=foo} <li>{$foo}</li>{/foreach}</ul>The above example will output:
上例将输出：
<ul> <li>1000</li> <li>1001</li> <li>1002</li></ul>
Example 7-6. Demonstrates the item and key attributes 例 7-6. 演示item和key属性
'Tennis', 3 => 'Swimming', 8 => 'Coding');$smarty->assign('myArray', $arr);?>Template to output $myArrayas key/val pair, like PHP’s foreach .
用模板按键名/键值对的形式输出$myArray, 类似于PHP的foreach。
<ul>{foreach from=$myArray key=k item=v} <li>{$k}: {$v}</li>{/foreach}</ul>The above example will output:
上例将输出：
<ul> <li>9: Tennis</li> <li>3: Swimming</li> <li>8: Coding</li></ul>
Example 7-7. {foreach} with associative item attribute 例 7-7. {foreach}的item属性是关联数组
array('no' => 2456, 'label' => 'Salad'),96 => array('no' => 4889, 'label' => 'Cream'));$smarty->assign('items', $items_list);?>Template to output $itemswith $myIdin the url
模板中，url通过$myId输出$items
<ul>{foreach from=$items key=myId item=i} <li><a href="item.php?id={$myId}">{$i.no}: {$i.label}</li>{/foreach}</ul>The above example will output:
上例将输出：
<ul> <li><a href="item.php?id=23">2456: Salad</li> <li><a href="item.php?id=96">4889: Cream</li></ul>
Example 7-8. {foreach} with nested item and key 例 7-8. {foreach}使用嵌套的item和key
Assign an array to Smarty, the key contains the key for each looped value.
向Smarty设置一个数组，对于每个键名对应的每个循环值都包括键。
assign('contacts', array(array('phone' => '1','fax' => '2','cell' => '3'),array('phone' => '555-4444','fax' => '555-3333','cell' => '760-1234')));?>The template to output $contact.
用于输出$contact的模板。
{foreach name=outer item=contact from=$contacts} <hr /> {foreach key=key item=item from=$contact} {$key}: {$item}<br /> {/foreach}{/foreach}The above example will output:
上例将输出：
<hr /> phone: 1<br /> fax: 2<br /> cell: 3<br /><hr /> phone: 555-4444<br /> fax: 555-3333<br /> cell: 760-1234<br />
Example 7-9. Database example with {foreachelse} 例 7-9. 使用{foreachelse}的 数据库示例
A database (eg PEAR or ADODB) example of a search script, the query results assigned to Smarty
一个数据库（例如PEAR或ADODB）的搜索脚本示例，
assign('results', $db->getAssoc($sql) );?>The template which display “None found” if no results with {foreachelse}.
借助{foreachelse}标记在没有结果时模板输出”None found”字样。
{foreach key=cid item=con from=$results} <a href="contact.php?contact_id={$cid}">{$con.name} - {$con.nick}</a><br />{foreachelse} No items were found in the search{/foreach}
indexcontains the current array index, starting with zero.
.index包含当前数组索引，从零开始。
Example 7-10. index example 例 7-10. index示例
{* The header block is output every five rows *}{* 每五行输出一次头部区块 *} <table> {foreach from=$items key=myId item=i name=foo}{if $smarty.foreach.foo.index % 5 == 0} <tr> <th>Title</th> </tr>{/if} <tr> <td>{$i.label}</td> </tr>{/foreach} </table>
iterationcontains the current loop iteration and always starts at one, unlike index . It is incremented by one on each iteration.
iteration包含当前循环次数，与index不同，从1开始，每次循环增长1。
Example 7-11. iteration and index example 例 7-11. iteration和index示例
{* this will output 0|1, 1|2, 2|3, ... etc *}{* 该例将输出0|1, 1|2, 2|3, ... 等等 *}{foreach from=$myArray item=i name=foo}{$smarty.foreach.foo.index}|{$smarty.foreach.foo.iteration},{/foreach}
firstis TRUEif the current {foreach}iteration is the initial one.
first在当前{foreach}循环处于初始位置时值为TRUE。
Example 7-12. first property example 例 7-12. first属性示例
{* show LATEST on the first item, otherwise the id *}{* 对于第一个条目显示LATEST而不是id *} <table> {foreach from=$items key=myId item=i name=foo} <tr> <td>{if $smarty.foreach.foo.first}LATEST{else}{$myId}{/if}</td> <td>{$i.label}</td> </tr>{/foreach} </table>
lastis set to TRUEif the current {foreach}iteration is the final one.
last在当前{foreach}循环处于最终位置是值为TRUE。
Example 7-13. last property example 例 7-13. last属性示例
{* Add horizontal rule at end of list *}{* 在列表结束时增加一个水平标记 *}){foreach from=$items key=part_id item=prod name=products} {$prod}{if $smarty.foreach.products.last} <hr />{else},{/if}{foreachelse}... content ...{/foreach}
showis used as a parameter to {foreach}. showis a boolean value. If FALSE, the {foreach}will not be displayed. If there is a {foreachelse}present, that will be alternately displayed.
show是{foreach}的参数. show是一个布尔值。如果值为FALSE，{foreach}将不被显示。如果有对应的{foreachelse}，将被显示。
totalcontains the number of iterations that this {foreach}will loop. This can be used inside or after the {foreach}.
total包括{foreach}将循环的次数，既可以在{foreach}中使用，也可以在之后使用。
Example 7-14. total property example 例 7-14. total属性示例
{* show rows returned at end *}{* 在结束位置显示行数 *}{foreach from=$items key=part_id item=prod name=foo}{$prod.name> <hr />{if $smarty.foreach.foo.last} {$smarty.foreach.foo.total} items See also {section} and $smarty.foreach .
参考{section}和$smarty.foreach。
