用于像访问序数数组一样访问关联数组 {foreach},{foreachelse} {foreach} is used to loop over an associative array as 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 Yes必要 n/a The array you are looping through 循环访问的数组 item string 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 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 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 Required attributes are from and item. from和item是必要属性 The name of the {foreach} loop can be anything you like, made up of letters, numbers and underscores, like PHP variables. {foreach}循环的name可以是任何字母，数组，下划线的组合，参考PHP变量。 {foreach} loops can be nested, and the nested {foreach} names must be unique from each other. {foreach}循环可以嵌套，嵌套的{foreach}的名称应当互不相同。 The from attribute, usually an array of values, determines the number of times {foreach} will loop. from属性通常是值数组，被用于判断{foreach}的循环次数。 {foreachelse} is executed when there are no values in the from variable. 在from变量中没有值时，将执行{foreachelse}。 {foreach} loops also have their own variables that handle properties. These are accessed with: {$smarty.foreach.name.property} with "name" being the nameattribute. {foreach}循环也有自身属性的变量，可以通过{$smarty.foreach.name.property}访问，其中"name"是name属性。 Note: The name attribute is only required when you want to access a {foreach} property, unlike {section}. Accessing a {foreach} property withname undefined 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。 {foreach} properties are index, iteration, first, last, show, total. {foreach}属性有index, iteration, first, last, show, total.    Example 7-7. {foreach} with associative item attribute 例 7-7. {foreach}的item属性是关联数组  <?php $items_list = array(     23 => array('no' => 2456, 'label' => 'Salad'),     96 => array('no' => 4889, 'label' => 'Cream') ); $smarty->assign('items', $items_list); ?>         Template to output $items with $myId in the url 模板中，url通过$myId输出$items   <ul> {foreach from=$items key=myId item=i}   <li><a href="http://blog.163.com/lgh_2002/blog/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="http://blog.163.com/lgh_2002/blog/item.php?id=23">2456: Salad</li>   <li><a href="http://blog.163.com/lgh_2002/blog/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。  <?php  $smarty->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 />     .index index contains the current array index, starting with zero. .index包含当前数组索引，从零开始。  {* 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>                                                                                                                                    .iteration iteration contains 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。  {* 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}      

.first

first is TRUE if 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。  {* 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>{$i.label}</td> </tr> {/foreach} </table>       .last last is set to TRUE if the current {foreach} iteration is the final one. last在当前{foreach}循环处于最终位置是值为TRUE。  {* 在列表结束时增加一个水平标记 *}) {foreach from=$items key=part_id item=prod name=products}   <a href="http://blog.163.com/lgh_2002/blog/#{$part_id}">{$prod}</a>{if $smarty.foreach.products.last}<hr>{else},{/if} {foreachelse}   ... content ... {/foreach}           .show show is used as a parameter to {foreach}. show is a boolean value. If FALSE, the {foreach} will not be displayed. If there is a {foreachelse} present, that will be alternately displayed. show是{foreach}的参数. show是一个布尔值。如果值为FALSE，{foreach}将不被显示。如果有对应的{foreachelse}，将被显示。 .total total contains the number of iterations that this {foreach} will loop. This can be used inside or after the {foreach}. total包括{foreach}将循环的次数，既可以在{foreach}中使用，也可以在之后使用。 {* 在结束位置显示行数 *} {foreach from=$items key=part_id item=prod name=foo} {$prod.name><hr/> {if $smarty.foreach.foo.last}   <div id="total">{$smarty.foreach.foo.total} items</div> {/if} {foreachelse}  ... something else ... {/foreach}