本文實例講述了PHP實現(xiàn)數(shù)組根據(jù)某個字段進行水平合并，橫向合并。分享給大家供大家參考，具體如下：
PHP數(shù)組水平合并，橫向合并，兩條數(shù)據(jù)合并成一行
需求
將兩個素組中日期相同的合并成一行
數(shù)組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
)
)
數(shù)組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
)
)
代碼實現(xiàn)
先將a,b數(shù)組合并，判斷當(dāng)前日期下是否空，空的話直接賦值，不空的話，將已有素組和當(dāng)前數(shù)組合并
$total = array_merge($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);
}
更多關(guān)于PHP相關(guān)內(nèi)容感興趣的讀者可查看本站專題：《PHP數(shù)組(Array)操作技巧大全》、《php排序算法總結(jié)》、《PHP數(shù)據(jù)結(jié)構(gòu)與算法教程》、《php程序設(shè)計算法總結(jié)》、《php字符串(string)用法總結(jié)》及《PHP常用遍歷算法與技巧總結(jié)》
希望本文所述對大家PHP程序設(shè)計有所幫助。
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