Smarty如何从foreach获得第一个索引

Smarty如何从foreach获得第一个索引

本文介绍了Smarty如何从foreach获得第一个索引?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

建设是这样的:

 <! -  projects list  - > 
{if!empty($ userObjects)}
< select id =projects-listtabindex =1name =project>
{if!isset($ selected)}< option value =0>选择项目< / option> {/ if}
{foreach from = $ userObjects item = v}
< option value ={$ v.Id}{if $ selected == $ v.Id} selected =selected{/ if}}> {$ v.Name}

{*如果是第一个元素*}
{if $ smarty.foreach.v.index == 0}
{if isset($ limit)}< br />< span id = projlimit > {$极限}< /跨度> {$ currency-> sign} {/ if}
{/ if}

< / option>
{/ foreach}
< / select>

正如您所看到的那样



<$ p $ b $ {if $ smarty.foreach.v.index == 0}



选项元素都有一个$限制值。如何使它好?我只需要第一个。

解决方案

您可以使用数组键吗?

  {foreach from = $ rows key = i item = row} 
{if $ i == 0}
数组$ b中的第一项$ b {/ if}
{/ foreach}


Construction is this:

<!-- projects list -->
            {if !empty($userObjects)}
                <select id="projects-list" tabindex="1" name="project">
                    {if !isset($selected)}<option value="0">Choose project</option>{/if}
                {foreach from=$userObjects item=v}
                    <option value="{$v.Id}" {if $selected==$v.Id}selected="selected"{/if} }>{$v.Name}

                        {* if it's 1st element *}
                        {if $smarty.foreach.v.index == 0}
                            {if isset($limit)}<br /><span id="projlimit">{$limit}</span> {$currency->sign}{/if}
                        {/if}

                    </option>
                {/foreach}
                </select>

as you can see I did

{if $smarty.foreach.v.index == 0}

but it's going wrong. In this case all the options elemets has a $limit value. How to make it good? I need only first one.

解决方案

Could you do this by the array key?

{foreach from=$rows key=i item=row}
     {if $i == 0}
         First item in my array
     {/if}
{/foreach}

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06-12 06:16