如何以我需要的方式從前一個數組中創建一個新數組？

Question

我有一個這樣的數組。在json編碼之後，我發現它們就像第一個結果一樣。但我想我的陣列像第二個陣列

Array 
(
    [2017-09-10] => 178934.35 
    [2017-09-09] => 700000 
    [2017-09-07] => 194432.25 
    [2017-09-06] => 183252.9 
    [2017-09-03] => 1311.45 
    [2017-09-02] => 1186.55 
    [2017-08-30] => 204660.3 
    [2017-08-29] => 290486.45 
    [2017-08-28] => 2400 
    [2017-08-27] => 600.00 
    [2017-08-26] => 840.00 
    [2017-08-16] => 600.00 
) 

json編碼後的第一個結果。

{"2017-09-10":178934.35,"2017-09-09":700000,"2017-09-07":194432.25,"2017-09-06":183252.9,"2017-09-03":"1311.45","2017-09-02":"1186.55","2017-08-30":204660.3,"2017-08-29":290486.45,"2017-08-28":2400,"2017-08-27":"600.00","2017-08-26":"840.00","2017-08-16":"600.00"} 

要求陣列格式

Array 
(
    [0] => Array 
     (
      [cols] => 2017-09-10 
      [rows] => 177622.91 
     ) 

) 

JSON Enconding

[{"cols":"2017-09-10","rows":177622.91} {"cols":"2017-09-10","rows":177622.91}] 

Answer 1

遍歷陣列後，並建立一個新問題：

$source_array = []; 
$new_array = []; 
foreach ($source_array as $key => $value) { 
    $new_array[] = [ 
     'cols' => $key, 
     'rows' => $value, 
    ]; 
}