用不同数量的子元素添加子数组的值

Question

I have an array of this structure:

 Array ( [0] => Array ( [0] => Array ( [year] => 2014 [weeknumber] => 1 [foo1] => 1 [foo2] => 2 [foo3] => 3 ) [1] => Array ( [year] => 2014 [weeknumber] => 2 [foo1] => 1 [foo2] => 2 [foo3] => 3 ) [2] => Array ( [year] => 2014 [weeknumber] => 3 [foo1] => 1 [foo2] => 2 [foo3] => 3 ) ) [1] => Array ( [0] => Array ( [year] => 2014 [weeknumber] => 1 [foo1] => 1 [foo2] => 2 [foo3] => 3 ) [1] => Array ( [year] => 2014 [weeknumber] => 2 [foo1] => 1 [foo2] => 2 [foo3] => 3 ) [2] => Array ( [year] => 2014 [weeknumber] => 3 [foo1] => 1 [foo2] => 2 [foo3] => 3 ) ) ) 

I count the sub-elements with this function:

 $final = array(); foreach($array as $index1 => $sub_array1) { $i = 0; foreach($sub_array1 as $index2 => $final_sub_array) { $wn = $final_sub_array['weeknumber']; $year = $final_sub_array['year']; unset($final_sub_array['year']); unset($final_sub_array['weeknumber']); foreach($final_sub_array as $key => $value) { if(isset($final[$i][$key])) { $final[$i][$key] += $value; } else { $final[$i][$key] = $value; } $final[$i]['kw'] = $wn; $final[$i]['jahr'] = $year; } $i++; } } 

The script only works if $ final_sub_array always has the same number of elements. But if one arrray has only 1 or 2 elements and the others have more, it no longer works. How can I fix that? All entries with the same year and the same week number must be added together.

---

Here is the code to play with:

<?php
$var =
array (
113 => 
array (
  0 => 
  array (
    'id' => '1537',
    'kw' => '22',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '113',
  ),
  1 => 
  array (
    'id' => '1541',
    'kw' => '23',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '113',
  ),
  2 => 
  array (
    'id' => '1543',
    'kw' => '24',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '113',
  ),
),
114 => 
array (
  0 => 
  array (
    'id' => '1538',
    'kw' => '22',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '114',
  ),
  1 => 
  array (
    'id' => '1540',
    'kw' => '23',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '114',
  ),
  2 => 
  array (
    'id' => '1544',
    'kw' => '24',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '114',
  ),
),
115 => 
array (
  0 => 
  array (
    'id' => '1539',
    'kw' => '22',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '115',
  ),
  1 => 
  array (
    'id' => '1542',
    'kw' => '23',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '115',
  ),
  2 => 
  array (
    'id' => '1545',
    'kw' => '24',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '115',
  ),
),
116 => 
array (
  0 => 
  array (
    'id' => '1546',
    'kw' => '24',
    'jahr' => '2014',
    'anzahl_betten' => '10',
    'zugange_dauerpflege' => '0',
    'zugange_kurzzeitpflege' => '0',
    'abgange_dauerpflege_sterbefalle' => '0',
    'abgange_dauerpflege_auszuge' => '0',
    'abgange_kurzzeitpflege' => '0',
    'wechsel_kurz_dauer' => '0',
    'anzahl_tage' => '0',
    'geplante_einzuge' => '0',
    'hID' => '116',
  ),
),
);
foreach($var as $index1 => $sub_array1)
{
$i = 0;
  foreach($sub_array1 as $index2 => $final_sub_array)
  {
      $kw = $final_sub_array['kw'];
      $jahr = $final_sub_array['jahr'];
      unset($final_sub_array['id']);
      unset($final_sub_array['kw']);
      unset($final_sub_array['jahr']);
      unset($final_sub_array['hID']);
      foreach($final_sub_array as $key => $value)
      {
          if(isset($final[$i][$key])) {
              $final[$i][$key] += $value;
          }
          else {
              $final[$i][$key] = $value;
          }
          $final[$i]['kw'] = $kw;
          $final[$i]['jahr'] = $jahr;
      }
    $i++;
  }
}
echo '<pre>';
print_r($final);
echo '</pre>';
?>

if you delete the last array with the key 116 everything is working. But with it, it doubles the kw 24 and counts wrong.

Answer 1

I think this may be what you want. It uses $kw as the key of the final array, not $i , so that it combines sub-arrays with the same kw value. I'm a little confused about what you're doing with jahr , though. If there are entries with the same kw but different jahr , the final result will have the last jahr .

foreach($var as $index1 => $sub_array1)
{
  foreach($sub_array1 as $index2 => $final_sub_array)
  {
      $kw = $final_sub_array['kw'];
      $jahr = $final_sub_array['jahr'];
      unset($final_sub_array['id']);
      unset($final_sub_array['kw']);
      unset($final_sub_array['jahr']);
      unset($final_sub_array['hID']);
      foreach($final_sub_array as $key => $value)
      {
          if(isset($final[$kw][$key])) {
              $final[$kw][$key] += $value;
          }
          else {
              $final[$kw][$key] = $value;
          }
          $final[$kw]['kw'] = $kw;
          $final[$kw]['jahr'] = $jahr;
      }
    $i++;
  }
}

BTW, if this is coming from a database query, it seems like you would be able to get the database to do all the summing for you, with SUM(col1+col2+col3...) ... GROUP BY kw .