smarty {foreach},{foreachelse}
foreach与foreachelse是我们在模板开发中常用用到的两个方法,下面看几个例子。
{foreach},{foreachelse}用于像访问序数数组一样访问关联数组
Attribute Name属性名称
from:循环访问的数组
item:当前元素的变量名
key:当前键名的变量名
name:用于访问foreach属性的foreach循环的名称
{foreach from=$variable item = item key = key name=name}
{$variable|@count} //获取循环数组的长度
{$smarty.foreach.name.index} //获取当前循环数组元素的下标,以0开始
{$smarty.foreach.name.iteration} //获取循环次数,以1开始
{$smarty.foreach.name.first} //当为true时,标记循环第一次执行
{$smarty.foreach.name.last} //当为true时,标记循环最后一次执行
{$smarty.foreach.name.show} //当前是否显示
{$smarty.foreach.name.total} //循环次数
{/foreach}
Foreach源)(性能指标,迭代,第一个,最后,显示,整体。
<?php $arr = array(1000, 1001, 1002); $smarty->assign('myArray', $arr); ?>
Template to output $myArray in an un-ordered list
<ul> {foreach from=$myArray item=foo} <li>{$foo}</li> {/foreach} </ul>
The above example will output:
<ul> <li>1000</li> <li>1001</li> <li>1002</li> </ul>
Example 7-6. Demonstrates the item and key attributes
<?php $arr = array(9 => 'Tennis', 3 => 'Swimming', 8 => 'Coding'); $smarty->assign('myArray', $arr); ?>
Template to output $myArray as key/val pair, like PHP's foreach.
<ul> {foreach from=$myArray key=k item=v} <li>{$k}: {$v}</li> {/foreach} </ul>
The above example will output:
<ul> <li>9: Tennis</li> <li>3: Swimming</li> <li>8: Coding</li> </ul>
Example 7-7. {foreach} with associative item attribute
<?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 $myId in the url
<ul> {foreach from=$items key=myId item=i} <li><a href="item.php?id={$myId}">{$i.no}: {$i.label}</li> {/foreach} </ul>
The above example will output:
<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
Assign an array to Smarty, the key contains the key for each looped value.
<?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 $contact.
{foreach name=outer item=contact from=$contacts} <hr /> {foreach key=key item=item from=$contact} {$key}: {$item}<br /> {/foreach} {/foreach}
The above example will output:
<hr /> phone: 1<br /> fax: 2<br /> cell: 3<br /> <hr /> phone: 555-4444<br /> fax: 555-3333<br /> cell: 760-1234<br />
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