我有一个名为$mydata
的数组,如下所示:
Array
(
[0] => Array
(
[id] => 1282
[type] =>2
)
[1] => Array
(
[id] => 1281
[type] =>1
)
[2] => Array
(
[id] => 1266
[type] =>2
)
[3] => Array
(
[id] => 1265
[type] =>3
)
)
我已将数组分配给smarty $smarty->assign("results", $mydata)
现在,在模板中,我需要打印数组中每个“类型”的数量。任何人都可以帮我这么做吗?
答案 0 :(得分:18)
PHP 5.3,5.4:
从Smarty 3开始,你可以做到
{count($mydata)}
你也可以在Smarty 2或3中管它:
{$mydata|count}
要计算“类型”值,您必须在PHP或Smarty中遍历数组:
{$type_count = array()}
{foreach $mydata as $values}
{$type = $values['type']}
{if $type_count[$type]}
{$type_count[$type] = $type_count[$type] + 1}
{else}
{$type_count[$type] = 1}
{/if}
{/foreach}
Count of type 2: {$type_count[2]}
PHP 5.5 +:
使用PHP 5.5+和Smarty 3,您可以使用新的array_column
函数:
{$type_count = array_count_values(array_column($mydata, 'type'))}
Count of type 2: {$type_count['2']}
答案 1 :(得分:15)
{$mydata|@count}
其中count传递php函数count()
答案 2 :(得分:4)
您也可以使用:
{if $myarray|@count gt 0}...{/if}