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  1. <?php
  2. function count_children1(&$array){
  3. 	foreach($array['children'] as &$child){
  4. 		if(isset($child['children'])){
  5. 			$array['children_count'] += count_children($child);
  6. 		}
  7. 		else return 1;
  8. 	}
  9. }
  10.  
  11. function count_children(&$table){
  12.   $count = 0;
  13.   foreach($table as &$array) {
  14.     if (isset($array['children'])) {
  15.       $count += count($array['children']);
  16.       $count += count_children($array['children']);
  17.     }
  18.     $array['children_count'] = $count;
  19.   }
  20.   return $count; 
  21. }
  22.  
  23. $table1 = [[1] => [
  24.         ['id'] => 1,
  25.         ['children_count'] => 0
  26.     ],2,3];
  27.  
  28. $table = [
  29.     1 => [
  30.         'id' => 1,
  31.         'children_count' => 0
  32. 	],
  33.     2 => [
  34.         'id' => 2,
  35.         'children_count' => 0,
  36.         'children' => [
  37.             3 => [
  38.                 'id' => 3,
  39.                 'children_count' => 0,
  40.                 'children' => [
  41.                     4 => [
  42.                         'id' => 4,
  43.                         'children_count' => 0,
  44.                         'children' => [
  45.                             5 => [
  46.                                 'id' => 5,
  47.                                 'children_count' => 0
  48.                             ],
  49.  
  50.                             6 => [
  51.                                 'id' => 6,
  52.                                 'children_count' => 0
  53.                             ]
  54.                         ]
  55.                     ]
  56.                 ]
  57.             ]
  58.         ]
  59.     ]
  60.  
  61. ];
  62.  
  63. $table1 = [
  64. 1 => [
  65.     'id' => 1,
  66.     'children_count' => 0
  67. ],
  68. 2 => [
  69.     'id' => 2,
  70.     'children_count' => 0,
  71.     'children' => [
  72.         3 => [
  73.             'id' => 3,
  74.             'children_count' => 0,
  75.             'children' => [
  76.                 4 => [
  77.                     'id' => 4,
  78.                     'children_count' => 0,
  79.                     'children' => [
  80.                         5 => [
  81.                             'id' => 5,
  82.                             'children_count' => 0
  83.                         ],
  84.  
  85.                         6 => [
  86.                             'id' => 6,
  87.                             'children_count' => 0
  88.                         ]
  89.                     ]
  90.                 ]
  91.             ]],
  92.         7 =>  [
  93.                             'id' => 7,
  94.                             'children_count' => 0
  95.                         ],       
  96.  
  97.     ]
  98.  
  99. ]    
  100. ];
  101.  
  102. //var_dump($table);
  103. foreach($table as &$element){
  104. //	if(isset($element['children'])) count_children($element);
  105. }
  106.  
  107. count_children($table1);
  108.  
  109. print_r($table1);
  110.  
Success #stdin #stdout #stderr 0.02s 24400KB
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stdin
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Standard input is empty
stdout
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Array
(
    [1] => Array
        (
            [id] => 1
            [children_count] => 0
        )

    [2] => Array
        (
            [id] => 2
            [children_count] => 5
            [children] => Array
                (
                    [3] => Array
                        (
                            [id] => 3
                            [children_count] => 3
                            [children] => Array
                                (
                                    [4] => Array
                                        (
                                            [id] => 4
                                            [children_count] => 2
                                            [children] => Array
                                                (
                                                    [5] => Array
                                                        (
                                                            [id] => 5
                                                            [children_count] => 0
                                                        )

                                                    [6] => Array
                                                        (
                                                            [id] => 6
                                                            [children_count] => 0
                                                        )

                                                )

                                        )

                                )

                        )

                    [7] => Array
                        (
                            [id] => 7
                            [children_count] => 3
                        )

                )

        )

)
stderr
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PHP Warning:  Illegal offset type in /home/mzudJr/prog.php on line 24
PHP Warning:  Illegal offset type in /home/mzudJr/prog.php on line 26
PHP Warning:  Illegal offset type in /home/mzudJr/prog.php on line 26
https://ideone.com/LOnl3G
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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