根据条件合并多维数组

Question

我有以下数组：

array (size=6)
  'ID' => int 786
  'userID' => int 97291
  'tip_index' => string 'CARS' (length=11)
  'tip_apa' => string 'calda' (length=5)
  'citire' => string '2' (length=1)
  'data' => string '2020-04-21 15:32:49' (length=19)
C:\wamp64\www\test2.php:19:
array (size=6)
  'ID' => int 785
  'userID' => int 97291
  'tip_index' => string 'TRUCKS' (length=9)
  'tip_apa' => string 'calda' (length=5)
  'citire' => string '1' (length=1)
  'data' => string '2020-04-21 15:32:49' (length=19)
C:\wamp64\www\test2.php:19:
array (size=6)
  'ID' => int 784
  'userID' => int 97291
  'tip_index' => string 'MOTORCYCLES' (length=4)
  'tip_apa' => string 'calda' (length=5)
  'citire' => string '1' (length=1)
  'data' => string '2020-04-21 15:32:49' (length=19)
C:\wamp64\www\test2.php:19:
array (size=6)
  'ID' => int 783
  'userID' => int 97291
  'tip_index' => string 'CARS' (length=11)
  'tip_apa' => string 'calda' (length=5)
  'citire' => string '1' (length=1)
  'data' => string '2020-03-21 15:32:44' (length=19)
C:\wamp64\www\test2.php:19:
array (size=6)
  'ID' => int 782
  'userID' => int 97291
  'tip_index' => string 'TRUCKS' (length=9)
  'tip_apa' => string 'calda' (length=5)
  'citire' => string '0' (length=1)
  'data' => string '2020-03-21 15:32:41' (length=19)
C:\wamp64\www\test2.php:19:
array (size=6)
  'ID' => int 781
  'userID' => int 97291
  'tip_index' => string 'MOTORCYCLES' (length=4)
  'tip_apa' => string 'calda' (length=5)
  'citire' => string '0' (length=1)
  'data' => string '2020-03-21 15:32:39' (length=19)

我希望输出 3 个像这样的多维数组，按 tip_index 和 tip_apa 分组，其中我为每个 tip_apa 添加一些自定义键（例如：对于 tip_apa = rece 我想要添加数组 data_iv_rece、number_iv_rece、data_in_rece、number_in_rece）。每个 tip_apa 都有上个月的日期和值以及本月的日期和值，如下所示：

array (size=3)
  'CARS' => 
    array (size=2)
      'rece' => 
        array (size=4)
          'data_iv_rece' => string '22.03.2020' (length=10)
          'number_iv_rece' => string '1' (length=1)
          'data_in_rece' => string '22.04.2020' (length=10)
          'number_in_rece' => string '0' (length=1)
      'calda' => 
        array (size=4)
          'data_iv_calda' => string '22.03.2020' (length=10)
          'number_iv_calda' => string '1' (length=1)
          'data_in_calda' => string '22.04.2020' (length=10)
          'number_in_calda' => string '0' (length=1)
  'TRUCKS' => 
    array (size=2)
      'rece' => 
        array (size=4)
          'data_iv_rece' => string '22.03.2020' (length=10)
          'number_iv_rece' => string '1' (length=1)
          'data_in_rece' => string '22.04.2020' (length=10)
          'number_in_rece' => string '0' (length=1)
      'calda' => 
        array (size=4)
          'data_iv_calda' => string '22.03.2020' (length=10)
          'number_iv_calda' => string '1' (length=1)
          'data_in_calda' => string '22.04.2020' (length=10)
          'number_in_calda' => string '0' (length=1)
  'MOTORCYCLES' => 
    array (size=2)
      'rece' => 
        array (size=4)
          'data_iv_rece' => string '22.03.2020' (length=10)
          'number_iv_rece' => string '1' (length=1)
          'data_in_rece' => string '22.04.2020' (length=10)
          'number_in_rece' => string '0' (length=1)
      'calda' => 
        array (size=4)
          'data_iv_calda' => string '22.03.2020' (length=10)
          'number_iv_calda' => string '1' (length=1)
          'data_in_calda' => string '22.04.2020' (length=10)
          'number_in_calda' => string '0' (length=1)

这是过去 2 天一直在尝试的操作，但没有得到任何预期的输出：

 $userID   = $_SESSION['ID'];
 $info  = $db->query("SELECT * FROM `indecsi` WHERE `userID` = '$userID'")->fetchAll();
 $arrayInfos = array();
 foreach ($info as $key => $val) 
    {
        $month= date('m',strtotime($val['data']));

        if(date($month < date('m')) && $val['tip_apa'] == 'rece')
        {
            $data_iv_rece = $val['data'];
            $number_iv_rece = $val['citire'];
            $arrayInfos += [ 'data_iv_rece' => $data_iv_rece ];
            $arrayInfos += [ 'number_iv_rece' => $number_iv_rece ];
        }

        if(date($month == date('m')) && $val['tip_apa'] == 'rece')
        {
            $data_in_rece = $val['data'];
            $number_in_rece = $val['citire'];
            $arrayInfos += [ "data_in_rece" => $data_in_rece ];
            $arrayInfos += [ "number_in_rece" => $number_in_rece ];
        }

        if(date($month < date('m')) && $val['tip_apa'] == 'calda')
        {
            $data_iv_calda = $val['data'];
            $number_iv_calda = $val['citire'];
            $arrayInfos += [ 'data_iv_calda' => $data_iv_calda ];
            $arrayInfos += [ 'number_iv_calda' => $number_iv_calda ];
        }

        if(date($month == date('m')) && $val['tip_apa'] == 'calda')
        {
            $data_in_calda = $val['data'];
            $number_in_calda = $val['citire'];
            $arrayInfos += [ "data_in_calda" => $data_in_calda ];
            $arrayInfos += [ "number_in_calda" => $number_in_calda ];
        }
    }

最后尝试在 table 中获取 3 个数组：

 $consum_rece = $number_in_rece - $number_iv_rece;
 $consum_calda = $number_in_calda - $number_iv_calda;
 $table.= "<tr class='text-center'>";
 $table.= "<td>" . str_replace('_', ' ' , $val['tip_index']) . "</td>";
 $table.= "<td>" . $arrayInfos['data_in_rece'] . "</td>";
 $table.= "<td>" . $arrayInfos['number_in_rece'] . "</td>";
 $table.= "<td>" . $arrayInfos['data_iv_rece'] . "</td>";
 $table.= "<td>" . $arrayInfos['number_iv_rece'] . "</td>";
 $table.= "<td>" . $consum_rece . "</td>";
 $table.= "<td>" . $arrayInfos['data_in_calda'] . "</td>";
 $table.= "<td>" . $arrayInfos['number_in_calda'] . "</td>";
 $table.= "<td>" . $arrayInfos['data_iv_calda'] . "</td>";
 $table.= "<td>" . $arrayInfos['number_iv_calda'] . "</td>";
 $table.= "<td>" . $consum_calda . "</td>";
 $table.= "<td>-</td>";
 $table.= "</tr>";

尝试了多种方法，例如 array_push、array_merge、array_diff 以获得预期的输出，但没有成功。我觉得我已经走到一半了，做不对。有什么建议吗？谢谢！

Answer 1

起初我对你的解释有点困惑，但我想我发现了预期会发生什么。

假设您已经有了这个 php 数组（从 MySQL 或其他地方收集）：

$all_vehicles = array(
  array(
    'id' => 786,
    'userID' => 9791,
    'tip_index' => 'CARS',
    'tip_apa' => 'calda',
    'citire' => 2,
    'data' => '2020-04-21 15:32:49'
  ),  
  array(
    'id' => 785,
    'userID' => 9791,
    'tip_index' => 'TRUCKS',
    'tip_apa' => 'calda',
    'citire' => 1,
    'data' => '2020-04-21 15:32:49'
  ), 
  array(
    'id' => 784,
    'userID' => 97291,
    'tip_index' => 'MOTORCYCLES',
    'tip_apa' => 'calda',
    'citire' => 1,
    'data' => '2020-04-21 15:32:49'
  ), 
  array(
    'id' => 783,
    'userID' => 97291,
    'tip_index' => 'CARS',
    'tip_apa' => 'calda',
    'citire' => 1,
    'data' => '2020-03-21 15:32:44'
  ), 
  array(
    'id' => 782,
    'userID' => 97291,
    'tip_index' => 'TRUCKS',
    'tip_apa' => 'calda',
    'citire' => 0,
    'data' => '2020-03-21 15:32:41'
  ), 
  array(
    'id' => 781,
    'userID' => 97291,
    'tip_index' => 'MOTORCYCLES',
    'tip_apa' => 'calda',
    'citire' => 0,
    'data' => '2020-03-21 15:32:39'
  ),
);

我的建议是遍历数组并更新所需的值。我已通过添加 "data_in_" - Value.

自动删除 ifs 和 elses

然后将它们添加到多维数组以在汽车、卡车和摩托车之间进行拆分。

$ordered_vehicles = array();
foreach($all_vehicles as $val)
{
    $month= date('m',strtotime($val['data']));

    if($month <= date('m') && in_array($val['tip_apa'],array('rece','calda')))
    {
        $data = date('d.m.Y',strtotime($val['data']));
        // Convert the data in the required format DD.MM.YYYY
        $number = $val['citire'];

        $val['data_in_'.$val['tip_apa']] =  $data;
        $val['number_in_'.$val['tip_apa']] =  $number;
    }

    $ordered_vehicles[$val['tip_index']][$val['tip_apa']][] = $val;
}

预期结果将是包含 3 个子数组的多维数组 - 汽车、卡车和摩托车。他们每个人都有多个包含所需数据的数组。

我的情况是这样的：

之后您可以根据需要打印和更改数据。如果我在此过程中遗漏了什么，请在下面提及。干杯。

根据条件合并多维数组

Merge multidimensional array according to conditions

php

arrays

foreach

associative-array

multidimensional-array