獲取路徑列

Question

我有一個數組（數據來自鄰接表），它看起來像：

$data = Array 
(
    [0] => Array 
     (
      [id] => 1 
      [name] => Anniversary 
      [parent] => 0 
     ) 

    [1] => Array 
     (
      [id] => 12 
      [name] => New arrives 
      [parent] => 1 
     ) 

    [2] => Array 
     (
      [id] => 13 
      [name] => Discount 
      [parent] => 12 
     ) 

    [3] => Array 
     (
      [id] => 6 
      [name] => Birthday 
      [parent] => 0 
     ) 
) 

我有通過ID返回路徑數組的函數：

function categoryRecursion($element, $input) { 

     $return = array_filter($input, function($v) use ($element) { return $v->id == $element; }); 
     $last = end($return); 
     $str[] = $last; 
     if($last->parent !=0) { 
      $str[] = categoryRecursion($last->parent, $input); 
     } 
     return array_reverse($str); //implode('->',array_reverse($str)); 
} 

當我使用它：

print(categoryRecursion('13',$data)); 

我得到這樣的輸出：

Array 
(
    [0] => Array 
     (
      [0] => Array 
       (
        [0] => stdClass Object 
         (
          [id] => 1 
          [name] => Anniversary 
          [parent] => 0 
         ) 

       ) 

      [1] => stdClass Object 
       (
        [id] => 12 
        [name] => New arrives 
        [parent] => 1 
       ) 

     ) 

    [1] => stdClass Object 
     (
      [id] => 13 
      [name] => Discount 
      [parent] => 12 
     ) 

) 

但是我正在尋找的方式來獲得輸出：

Array 
    (
     [0] => stdClass Object 
      (
       [id] => 1 
       [name] => Anniversary 
       [parent] => 0 
      ) 
     ) 

     [1] => stdClass Object 
      (
       [id] => 12 
       [name] => New arrives 
       [parent] => 1 
      ) 

     ) 

     [2] => stdClass Object 
      (
       [id] => 13 
       [name] => Discount 
       [parent] => 12 
      ) 

    ) 

如何解決我的功能？

Answer 1

我不明白你的數組成爲對象的地方。如果使用陣列，代碼可以是

function categoryRecursion($element, $input) { 

     $return = array_filter($input, function($v) use ($element) { return $v['id'] == $element; }); 
     $last = end($return); 
     $str[] = $last; 
     if($last['parent'] !=0) { 
      $str = array_merge(categoryRecursion($last['parent'], $input), $str); 
     } 
     return $str; 
}