如何在循环中添加具有相同月份的数组？

Question

数组月份

array(8) { [0]=> string(2) "05" [1]=> string(2) "09" [2]=> string(2) "08" [3]=> string(2) "07" [4]=> string(2) "05" [5]=> string(2) "07" [6]=> string(2) "06" [7]=> string(2) "07" }


string(41) "["05","09","08","07","05","07","06","07"]"

月份的数组值

array(8) { [0]=> string(5) "20000" [1]=> string(5) "10000" [2]=> string(5) "10000" [3]=> string(5) "15000" [4]=> string(5) "10000" [5]=> string(5) "50000" [6]=> string(5) "10000" [7]=> string(5) "14000" }

string(65) "["20000","10000","10000","15000","10000","50000","10000","14000"]"

所以，我想添加同一个月的数字

05 => 20000
05 => 10000
06 => 10000
07 => 15000
07 => 50000
07 => 14000
08 => 10000
09 => 10000

期望的输出

string(106) "{"1":0,"2":0,"3":0,"4":0,"5":"30000","6":"10000","7":"79000","8":"10000","9":"10000","10":0,"11":0,"12":0}"

代码：

$mainarr = [];

foreach ($loans3rdChart as $key => $value) {

      for ($i=1; $i <=12 ; $i++) {

      if(!empty($mainarr[$i])){

        //$mainarr[$i]+=$value['y'];

      }else{

        if($i==$value['month_release']){

          $mainarr[$i] = $value['amount_granted'];

        }else{

          $mainarr[$i] = 0;

        }

      }

    }//end loop

  }

输出：

string(106) "{"1":0,"2":0,"3":0,"4":0,"5":"20000","6":"10000","7":"15000","8":"10000","9":"10000","10":0,"11":0,"12":0}"

请帮我解决这个问题。谢谢。

Answer 1

您的问题是，您没有考虑在第二次到达已经存在的月份时需要将其添加到现有值中......这是一个让您完成所有操作的示例：

<?php
$months = ["05","09","08","07","05","07","06","07"];
$values = ["20000","10000","10000","15000","10000","50000","10000","14000"];
foreach($months as $key => $month){
    if(!isset($newArray[$month])){
        $newArray[$month] = $values[$key];
    } else {
        $newArray[$month] = $newArray[$month] + $values[$key];
    }
}
for ($i=1; $i <=12 ; $i++) {
    if(strlen($i) == 1){
        $id = "0$i";
    } else {
        $id = $i;
    }
    if(!isset($newArray[$id])){
        $newArray[$id] = 0;
    }
}
ksort($newArray);
print_r(json_encode($newArray));

将返回：

{"01":0,"02":0,"03":0,"04":0,"05":30000,"06":"10000","07":79000,"08":"10000","09":"10000","10":0,"11":0,"12":0}

编辑 -- 我已经编辑了我的代码并添加了 0 以使每个月的数字为 2 个数字。

只是想强调还有很多方法可以做到这一点！ :)