2020-10-29
PHP实现数组根据某个字段进行水平合并,横向合并案例分析

PHP实现数组根据某个字段进行水平合并,横向合并案例分析

本文实例讲述了PHP实现数组根据某个字段进行水平合并,横向合并。分享给大家供大家参考,具体如下: PHP数组水平合并,横向合并,两条数据合并成一行 需求 将两个素组中日期相同的合并成一行 数组a Array ( [0] => Array ( [date] => 2019-04-02 [today_pay_money] => 168.00 [today_pay_num] => 1 [yesterday_pay_money] => 999.00 [yesterday_pay_num] => 1 ) [1] => Array ( [date] => 2019-04-09 [today_pay_money] => 0.01 [today_pay_num] => 1 [yesterday_pay_money] => 0.00 [yesterday_pay_num] => 0 ) [2] => Array ( [date] => 2019-05-05 [today_pay_money] => 0.01 [today_pay_num] => 1 [yesterday_pay_money] => 2.00 [yesterday_pay_num] => 1 ) [3] => Array ( [date] => 2019-05-11 [today_pay_money] => 0.00 [today_pay_num] => 0 [yesterday_pay_money] => [yesterday_pay_num] => 1 ) ) 数组B Array ( [0] => Array ( [date] => 2019-05-07 [today_pay_money1] => 0 [today_pay_num1] => 0 [yesterday_pay_money1] => 0 [yesterday_pay_num1] => 0 ) [1] => Array ( [date] => 2019-05-11 [today_pay_money1] => 0 [today_pay_num1] => 0 [yesterday_pay_money1] => 1 [yesterday_pay_num1] => 1 ) ) 需要格式 Array ( [2019-04-02] => Array ( [date] => 2019-04-02 [today_pay_money] => 168.00 [today_pay_num] => 1 [yesterday_pay_money] => 999.00 [yesterday_pay_num] => 1 ) [2019-04-09] => Array ( [date] => 2019-04-09 [today_pay_money] => 0.01 [today_pay_num] => 1 [yesterday_pay_money] => 0.00 [yesterday_pay_num] => 0 ) [2019-05-05] => Array ( [date] => 2019-05-05 [today_pay_money] => 0.01 [today_pay_num] => 1 [yesterday_pay_money] => 2.00 [yesterday_pay_num] => 1 ) [2019-05-11] => Array ( [date] => 2019-05-11 [today_pay_money] => 0.00 [today_pay_num] => 0 [yesterday_pay_money] => [yesterday_pay_num] => 1 [today_pay_money1] => 0 [today_pay_num1] => 0 [yesterday_pay_money1] => 1 [yesterday_pay_num1] => 1 ) [2019-05-07] => Array ( [date] => 2019-05-07 [today_pay_money1] => 0 [today_pay_num1] => 0 [yesterday_pay_money1] => 0 [yesterday_pay_num1] => 0 ) ) 代码实现 先将a,b数组合并,判断当前日期下是否空,空的话直接赋值,不空的话,将已有素组和当前数组合并 $total = array_merge($a,$b)); $res = array(); foreach ($total as $k => $v) { if (empty($res[$v['date']])) $res[$v['date']] = $v; else $res[$v['date']]= array_merge($res[$v['date']],$v); } 更多关于PHP相关内容感兴趣的读者可查看本站专题:《PHP数组(Array)操作技巧大全》、《php排序算法总结》、《PHP数据结构与算法教程》、《php程序设计算法总结》、《php字符串(string)用法总结》及《PHP常用遍历算法与技巧总结》 希望本文所述对大家PHP程序设计有所帮助。...
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