Array Formating

Question

我有關於多維數組的問題。

我想通過mysql和php創建嵌套菜單。

當我從這個

$ref = []; 
$items = []; 
foreach($row as $row) { 
    $thisRef =& $ref[$row->id]; 
    $thisRef['parent_id'] = $row->parent_id; 
    $thisRef['menu_id'] = $row->menu_id; 
    $thisRef['type'] = $row->type; 
    $thisRef['id'] = $row->id; 
    if($row->parent_id == 0) { 
     $items[] =& $thisRef; 
    } else { 
     $ref[$row->parent_id]['sub'][] =& $thisRef; 
    } 
} 

它生成這樣的陣列創建多維數組。

Array(
    [0] => Array 
     (
      [parent_id] => 0 
      [menu_id] => 10 
      [type] => p 
      [id] => 93 
     ) 
    [1] => Array 
     (
      [sub] => Array 
       (
        [0] => Array 
         (
          [parent_id] => 88 
          [menu_id] => 10 
          [type] => b 
          [id] => 92 
          [sub] => Array 
           (
            [0] => Array 
             (
              parent_id] => 92 
              [menu_id] => 8 
              [type] => c 
              [id] => 94 
             ) 
           ) 
         ) 
        [1] => Array 
         (
          [parent_id] => 88 
          [menu_id] => 8 
          [type] => c 
          [id] => 90 
         ) 

       ) 

      [parent_id] => 0 
      [menu_id] => 5 
      [type] => p 
      [id] => 88 
     ) 
    ) 
) 

其不錯，但我想改變第二陣列鍵子的名字我的意思是，如果陣列中的所有準備好有次，第二次將subofsub，我希望我解釋得很好，我試圖檢查與isset和array_key_exists但它只是混亂我的數組。

Answer 1

老實說，並沒有真正跟在這個問題上，並且與refs有點混淆。

你只是想做這樣的事情嗎？

<?php 

$ref = []; 
$items = []; 
$subCount = 0; 

foreach ($row as $row) { 
    $thisRef = &$ref[$row->id]; 
    $thisRef['parent_id'] = $row->parent_id; 
    $thisRef['menu_id'] = $row->menu_id; 
    $thisRef['type'] = $row->type; 
    $thisRef['id'] = $row->id; 
    if($row->parent_id == 0) { 
     $items[] = &$thisRef; 
    } else { 
     $subCount++; 
     $ref[$row->parent_id]['sub-' . $subCount][] = &$thisRef; 
    } 
}