index_prev
index_prev is used to display the previous loop index. on the first loop, this is set to -1.
index_prev 用于显示上一个循环索引值. 循环开始时,此值为-1.
Example 7-22. section property index_prev 例 7-22. section 的 index_prev 属性演示
{section name=customer loop=$custid} {$smarty.section.customer.index} id: {$custid[customer]} {* FYI, $custid[customer.index] and $custid[customer] are identical in meaning *} {if $custid[customer.index_prev] ne $custid[customer.index]} The customer id changed {/if} {/section} OUTPUT: 0 id: 1000 The customer id changed 1 id: 1001 The customer id changed 2 id: 1002 The customer id changed
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