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  1. <?php
  2.  
  3. $data = array(
  4.     array(
  5.         "status" => "new",
  6.         "type" => "type1",
  7.         "source" => "source1",
  8.         "other" => "other1",
  9.         "count" => "1",
  10.     ),
  11.     array(
  12.         "status" => "new",
  13.         "type" => "type1",
  14.         "source" => "source1",
  15.         "other" => "other1",
  16.         "count" => "2",
  17.     ),
  18.     array(
  19.         "status" => "new",
  20.         "type" => "type1",
  21.         "source" => "source1",
  22.         "other" => "other1",
  23.         "count" => "5",
  24.     ),
  25.     array(
  26.         "status" => "done",
  27.         "type" => "type1",
  28.         "source" => "source1",
  29.         "other" => "other1",
  30.         "count" => "1",
  31.     ),
  32.     array(
  33.         "status" => "done",
  34.         "type" => "type1",
  35.         "source" => "source2",
  36.         "other" => "other1",
  37.         "count" => "3",
  38.     ),
  39.     array(
  40.         "status" => "done",
  41.         "type" => "type2",
  42.         "source" => "source1",
  43.         "other" => "other1",
  44.         "count" => "1",
  45.     ),
  46.     array(
  47.         "status" => "done",
  48.         "type" => "type2",
  49.         "source" => "source1",
  50.         "other" => "other2",
  51.         "count" => "5",
  52.     ),
  53.     array(
  54.         "status" => "done",
  55.         "type" => "type3",
  56.         "source" => "source1",
  57.         "other" => "other1",
  58.         "count" => "1",
  59.     ),
  60.     array(
  61.         "status" => "done",
  62.         "type" => "type3",
  63.         "source" => "source1",
  64.         "other" => "other2",
  65.         "count" => "5",
  66.     ),
  67. );
  68.  
  69. $groups = array("status", "type", "source", "other");
  70.  
  71. function groupBy($data = array(), $groupBy = array())
  72. {
  73.  
  74.     $seen = array();
  75.     $result = array();
  76.  
  77.     foreach($data as $node){
  78.         if(!in_array($node[$groupBy[0]], $seen)) {
  79.             // Insert first grouping level as checked level
  80.             $seen[] = $node[$groupBy[0]];
  81.  
  82.             // Setting starting parent path
  83.             $path = array();
  84.             $path[$groupBy[0]] = $node[$groupBy[0]];
  85.  
  86.             // Get first group children
  87.             $result[] = getChildren($node[$groupBy[0]], 0, $data, $groupBy, $path);
  88.         }
  89.     }
  90.  
  91.     return $result;
  92. }
  93.  
  94. function getChildren($parent, $currentLevel, $data = array(), $groupBy, $path = array())
  95. {
  96.     $nextLevel = $currentLevel + 1;
  97.  
  98.     // Don't group deeper than needed and escape
  99.     if($nextLevel > count($groupBy)){
  100.         return array();
  101.     }
  102.  
  103.     $seen = array();
  104.     $children = array();
  105.     $dataSet = array();
  106.  
  107.  
  108.     foreach($data as $node){
  109.  
  110.         // Add next record to $path (to trace each record parent)
  111.         if($groupBy[$nextLevel]) {
  112.             $path[$groupBy[$nextLevel]] = $node[$groupBy[$nextLevel]];
  113.         }
  114.  
  115.         // Some magic, to check if we are on correct segment (trace the same as should be)
  116.         $goInside = true;
  117.         foreach($path as $fieldName => $fieldValue) {
  118.             if($node[$fieldName] != $fieldValue) {
  119.                 $goInside = false;
  120.                 break;
  121.             }
  122.         }
  123.  
  124.         // Just add data
  125.         if($node[$groupBy[$currentLevel]] == $parent && $goInside) {
  126.             $dataSet[] = $node;
  127.         }
  128.  
  129.         // TODO: I don't know why, but this is working
  130.         if($node[$groupBy[$currentLevel]] == $parent && !in_array($node[$groupBy[$nextLevel]], $seen) && $goInside) {
  131.             $seen[] = $node[$groupBy[$nextLevel]];
  132.             $tempChildren = getChildren($node[$groupBy[$nextLevel]], $nextLevel, $data, $groupBy, $path);
  133.             if($tempChildren && ($tempChildren["data"] || $tempChildren["children"])) {
  134.                 $children[] = $tempChildren;
  135.             }
  136.         }
  137.     }
  138.  
  139.     $result = array(
  140.         'fieldName' => $groupBy[$currentLevel],
  141.         'value' => $parent,
  142.     );
  143.  
  144.     if($children) {
  145.         $result['children'] = $children;
  146.     } else {
  147.         if($dataSet) {
  148.             $result['data'] = $dataSet;
  149.         }
  150.     }
  151.  
  152.     return $result;
  153. }
  154.  
  155. echo "<pre>";
  156. print_r(groupBy($data, $groups));
  157. echo "</pre>";
Success #stdin #stdout #stderr 0s 82560KB
comments (?)
stdin
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Standard input is empty
stdout
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<pre>Array
(
    [0] => Array
        (
            [fieldName] => status
            [value] => new
            [children] => Array
                (
                    [0] => Array
                        (
                            [fieldName] => type
                            [value] => type1
                            [children] => Array
                                (
                                    [0] => Array
                                        (
                                            [fieldName] => source
                                            [value] => source1
                                            [children] => Array
                                                (
                                                    [0] => Array
                                                        (
                                                            [fieldName] => other
                                                            [value] => other1
                                                            [data] => Array
                                                                (
                                                                    [0] => Array
                                                                        (
                                                                            [status] => new
                                                                            [type] => type1
                                                                            [source] => source1
                                                                            [other] => other1
                                                                            [count] => 1
                                                                        )

                                                                    [1] => Array
                                                                        (
                                                                            [status] => new
                                                                            [type] => type1
                                                                            [source] => source1
                                                                            [other] => other1
                                                                            [count] => 2
                                                                        )

                                                                    [2] => Array
                                                                        (
                                                                            [status] => new
                                                                            [type] => type1
                                                                            [source] => source1
                                                                            [other] => other1
                                                                            [count] => 5
                                                                        )

                                                                )

                                                        )

                                                )

                                        )

                                )

                        )

                )

        )

    [1] => Array
        (
            [fieldName] => status
            [value] => done
            [children] => Array
                (
                    [0] => Array
                        (
                            [fieldName] => type
                            [value] => type1
                            [children] => Array
                                (
                                    [0] => Array
                                        (
                                            [fieldName] => source
                                            [value] => source1
                                            [children] => Array
                                                (
                                                    [0] => Array
                                                        (
                                                            [fieldName] => other
                                                            [value] => other1
                                                            [data] => Array
                                                                (
                                                                    [0] => Array
                                                                        (
                                                                            [status] => done
                                                                            [type] => type1
                                                                            [source] => source1
                                                                            [other] => other1
                                                                            [count] => 1
                                                                        )

                                                                )

                                                        )

                                                )

                                        )

                                    [1] => Array
                                        (
                                            [fieldName] => source
                                            [value] => source2
                                            [children] => Array
                                                (
                                                    [0] => Array
                                                        (
                                                            [fieldName] => other
                                                            [value] => other1
                                                            [data] => Array
                                                                (
                                                                    [0] => Array
                                                                        (
                                                                            [status] => done
                                                                            [type] => type1
                                                                            [source] => source2
                                                                            [other] => other1
                                                                            [count] => 3
                                                                        )

                                                                )

                                                        )

                                                )

                                        )

                                )

                        )

                    [1] => Array
                        (
                            [fieldName] => type
                            [value] => type2
                            [children] => Array
                                (
                                    [0] => Array
                                        (
                                            [fieldName] => source
                                            [value] => source1
                                            [children] => Array
                                                (
                                                    [0] => Array
                                                        (
                                                            [fieldName] => other
                                                            [value] => other1
                                                            [data] => Array
                                                                (
                                                                    [0] => Array
                                                                        (
                                                                            [status] => done
                                                                            [type] => type2
                                                                            [source] => source1
                                                                            [other] => other1
                                                                            [count] => 1
                                                                        )

                                                                )

                                                        )

                                                    [1] => Array
                                                        (
                                                            [fieldName] => other
                                                            [value] => other2
                                                            [data] => Array
                                                                (
                                                                    [0] => Array
                                                                        (
                                                                            [status] => done
                                                                            [type] => type2
                                                                            [source] => source1
                                                                            [other] => other2
                                                                            [count] => 5
                                                                        )

                                                                )

                                                        )

                                                )

                                        )

                                )

                        )

                    [2] => Array
                        (
                            [fieldName] => type
                            [value] => type3
                            [children] => Array
                                (
                                    [0] => Array
                                        (
                                            [fieldName] => source
                                            [value] => source1
                                            [children] => Array
                                                (
                                                    [0] => Array
                                                        (
                                                            [fieldName] => other
                                                            [value] => other1
                                                            [data] => Array
                                                                (
                                                                    [0] => Array
                                                                        (
                                                                            [status] => done
                                                                            [type] => type3
                                                                            [source] => source1
                                                                            [other] => other1
                                                                            [count] => 1
                                                                        )

                                                                )

                                                        )

                                                    [1] => Array
                                                        (
                                                            [fieldName] => other
                                                            [value] => other2
                                                            [data] => Array
                                                                (
                                                                    [0] => Array
                                                                        (
                                                                            [status] => done
                                                                            [type] => type3
                                                                            [source] => source1
                                                                            [other] => other2
                                                                            [count] => 5
                                                                        )

                                                                )

                                                        )

                                                )

                                        )

                                )

                        )

                )

        )

)
</pre>
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PHP Notice:  Undefined offset: 4 in /home/msHZRL/prog.php on line 130
PHP Notice:  Undefined index:  in /home/msHZRL/prog.php on line 130
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https://ideone.com/rlPdJe
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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