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  1. <?php
  2. 	class Processor{
  3.  
  4. 		private $data;
  5. 		function __construct($category) {
  6. 			$this->data = array();
  7. 			$n = 0;
  8. 			for($i = 0;$i < count($category , COUNT_NORMAL);$i++){
  9. 				$n = $this->f($category[$i],0,$n+1) - 1;
  10. 			}
  11. 		}
  12.  
  13. 		private function f($arr,$parent,$first){
  14. 			$name = array_shift($arr);
  15. 			$current = $first;
  16. 			//正直型が同じ名前の項目に異なる型の値をツッコむの嫌い。
  17. 			//自分だったら0をそのまま突っ込むね。
  18.  
  19. 			//他の言語だと3項演算子って第2項と第3項同じ型じゃないと行けなかった気がするけど、とりあえず動くので良く考えずに放置
  20. 			array_push($this->data,array('id' => $current , 'parent_id' => ($parent !== 0 ? $parent : "-" ) , 'name' => $name));
  21.  
  22. 			for($i = 0;$i < count($arr,COUNT_NORMAL);$i++){
  23. 				$current = $this->f($arr[$i],$first,$current+1) - 1;
  24. 			}
  25. 			return $current + 1;
  26.  
  27. 		}
  28.  
  29. 		public function getResult(){
  30. 			return $this->data;
  31. 		}
  32.  
  33. 	}
  34.  
  35. 	function main(){
  36.  
  37. 		$category = array(
  38. 			array(
  39. 				'ライフ'
  40. 			),
  41. 			array(
  42. 				'デジタルライフ',
  43. 				array(
  44. 					'携帯・PHS'
  45. 				),
  46. 				array(
  47. 					'ワンセグ放送'
  48. 				)
  49. 			),
  50. 			array(
  51. 				'趣味',
  52. 				array(
  53. 					'AV機器',
  54. 					array(
  55. 						'オーディオ'
  56. 					),
  57. 				),
  58. 			),
  59. 		);
  60.  
  61. 		$processor = new Processor($category);
  62.  
  63. 		print_r($processor->getResult());
  64.  
  65. 	}
  66.  
  67. 	main();
  68.  
  69.  
  70.  
  71.  
  72. ?>
Success #stdin #stdout 0.01s 13112KB
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Array
(
    [0] => Array
        (
            [id] => 1
            [parent_id] => -
            [name] => ライフ
        )

    [1] => Array
        (
            [id] => 2
            [parent_id] => -
            [name] => デジタルライフ
        )

    [2] => Array
        (
            [id] => 3
            [parent_id] => 2
            [name] => 携帯・PHS
        )

    [3] => Array
        (
            [id] => 4
            [parent_id] => 2
            [name] => ワンセグ放送
        )

    [4] => Array
        (
            [id] => 5
            [parent_id] => -
            [name] => 趣味
        )

    [5] => Array
        (
            [id] => 6
            [parent_id] => 5
            [name] => AV機器
        )

    [6] => Array
        (
            [id] => 7
            [parent_id] => 6
            [name] => オーディオ
        )

)
https://ideone.com/26MC3
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
secret

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