php 如何合并 2 个多维数组？

Question

我有两个数组。列和表信息。我想将它们合并在一起，但是当我尝试使用 array_merge 进行合并时，我在 var_dump 时得到了这些结果：

array (size=67)
  0 => string 'receive_date' (length=12)
  1 => string 'day' (length=3)
  2 => string 'main_category' (length=13)
  3 => string 'brand' (length=5)
  4 => string 'first_to_receive_qty' (length=20)
  5 => string 'purchase_value' (length=14)
  6 => 
    array (size=6)
      0 => string '2021-11-09' (length=10)
      1 => string 'Tuesday' (length=7)
      2 => string 'apparel' (length=7)
      3 => string 'adidas' (length=6)
      4 => string '3184' (length=4)
      5 => string '34773.31' (length=8)
  7 => 
    array (size=6)
      0 => string '2021-11-09' (length=10)
      1 => string 'Tuesday' (length=7)
      2 => string 'apparel' (length=7)
      3 => string 'nike' (length=4)
      4 => string '642' (length=3)
      5 => string '5089.50' (length=7)
  8 => 
    array (size=6)
      0 => string '2021-11-09' (length=10)
      1 => string 'Tuesday' (length=7)
      2 => string 'apparel' (length=7)
      3 => string 'puma' (length=4)
      4 => string '15' (length=2)
      5 => string '120.00' (length=6)

但我希望数组 var_dump 看起来像：

array (size=726)
0 =>
  array (size=6)
    'receive_date' => string '2021-11-09' (length=10)
    'day' => string 'tuesday' (length=7)
    'main_category' => string 'apparel' (length=7)
    'brand' => string 'adidas' (length=6)
    'first_to_receive_qty' => string '3184' (length=4)
    'purchase_value' => string '34773.31' (length=8) 
1 =>
  array (size=6)
    'receive_date' => string '2021-11-09' (length=10)
    'day' => string 'tuesday' (length=7)
    'main_category' => string 'apparel' (length=7)
    'brand' => string 'nike' (length=4)
    'first_to_receive_qty' => string '642' (length=3)
    'purchase_value' => string '5089.50' (length=7)
2 =>
  array (size=6)
    'receive_date' => string '2021-11-09' (length=10)
    'day' => string 'tuesday' (length=7)
    'main_category' => string 'apparel' (length=7)
    'brand' => string 'puma' (length=4)
    'first_to_receive_qty' => string '15' (length=2)
    'purchase_value' => string '120.00' (length=6)

我已经尝试了一些东西，但我似乎无法弄清楚如何将它们合并到一个看起来像这样的数组中。谁能告诉我该怎么做？

Answer 1

您想合并而不是合并。获取新数组：

$result = array_map(function($v) use($columns) {
                        return array_combine($columns, $v);
                    }, $tableinfo);

或者简单地循环并合并：

foreach($tableinfo as $row) {
    $result[] = array_combine($columns, $row);
}

或修改$tableinfo：

array_walk(function(&$v) use($columns) {
               $v = array_combine($columns, $v);
           }, $tableinfo);

或者循环：

foreach($tableinfo as &$row) {
    $row = array_combine($columns, $row);
}

php 如何合并 2 个多维数组？

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