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  1. <?php
  2.  
  3. $test = array(
  4.     'test_1' => array(
  5.         0 => 'dummy1_0',
  6.         1 => '',
  7.         2 => 'dummy1_2',
  8.     ),
  9.     'test_3' => array(
  10.         0 => '',
  11.         1 => 'dummy3_1',
  12.         2 => '',
  13.     ),
  14.     'test_2' => array(
  15.         0 => 'dummy2_0',
  16.         1 => '',
  17.         2 => 'dummy2_2',
  18.     ),
  19.     'test_4' => array(
  20.         0 => '',
  21.         1 => 'dummy4_1',
  22.         2 => '',
  23.     ),
  24. );
  25.  
  26. $max = 0;
  27. $result = array();
  28. array_walk_recursive($test, function ($v) use (&$max) {
  29.     if (preg_match('/\A[^\d]++(\d++)_\d++\z/', $v, $matches)) {
  30.         $max = max((int)$matches[1], $max);
  31.     }
  32. });
  33. if ($max > 0) {
  34.     array_walk_recursive($test, function ($v) use (&$result, &$max) {
  35.         if (preg_match('/\A[^\d]++(\d++)_(\d++)\z/', $v, $matches)) {
  36.             $title = 'result_' . ($matches[2] + 1);
  37.             if (!isset($result[$title])) {
  38.                 $result[$title] = array_fill(0, $max, '');
  39.             }
  40.             $result[$title][$matches[1] - 1] = $v;
  41.         }
  42.     });
  43. }
  44. uksort($result, 'strnatcmp');
  45. print_r($result);
  46.  
Success #stdin #stdout 0.01s 20568KB
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Array
(
    [result_1] => Array
        (
            [0] => dummy1_0
            [1] => dummy2_0
            [2] => 
            [3] => 
        )

    [result_2] => Array
        (
            [0] => 
            [1] => 
            [2] => dummy3_1
            [3] => dummy4_1
        )

    [result_3] => Array
        (
            [0] => dummy1_2
            [1] => dummy2_2
            [2] => 
            [3] => 
        )

)
https://ideone.com/ncP9f5
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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