php – 按索引累积2D数组
发布时间:2020-12-13 17:02:55 所属栏目:PHP教程 来源:网络整理
导读:我有一个看起来像这样的数组: Array( [0] = Array ( [amount] = 60.00 [store_id] = 1 ) [1] = Array ( [amount] = 40.00 [store_id] = 1 ) [2] = Array ( [amount] = 10.00 [store_id] = 2 )) 将数组减少到总计与store_id相关的’amount’的类似数组的好方
我有一个看起来像这样的数组:
Array ( [0] => Array ( [amount] => 60.00 [store_id] => 1 ) [1] => Array ( [amount] => 40.00 [store_id] => 1 ) [2] => Array ( [amount] => 10.00 [store_id] => 2 ) ) 将数组减少到总计与store_id相关的’amount’的类似数组的好方法是什么. 对于实例我想得到这个: Array ( [0] => Array ( [amount] => 100.00 [store_id] => 1 ) [2] => Array ( [amount] => 10.00 [store_id] => 2 ) ) 解决方法
要准确再现您的要求:
<?php $stores = array(); $result = array(); foreach($rows as $i => $entry) { if (false === ($j = array_search($entry['store'],$stores))) { $stores[$i] = $entry['store']; $result[$i] = $entry; } else { $result[$j]['amount'] += $entry['amount']; } } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |