php显示多层次的treenode菜单 [英] php display multilevel treenode menu

问题描述

如何将此结构显示到多级菜单中？

How do I display this structure into a multi-level menu?

以下是结构：

array
  0 => 
    array
      'product_category_code' => string 'bracelets' (length=9)
      'product_category_desc' => string 'Bracelets' (length=9)
      'parent_node' => string '' (length=0)
      'inactive' => string '0' (length=1)
      'sort' => string '0' (length=1)
      'created_by' => string '1' (length=1)
      'created_date' => string '2014-03-14 22:04:08' (length=19)
      'modified_by' => string '1' (length=1)
      'modified_date' => string '2014-03-14 22:09:05' (length=19)
  1 => 
    array
      'product_category_code' => string 'floral-dress' (length=12)
      'product_category_desc' => string 'Floral Dress' (length=12)
      'parent_node' => string '' (length=0)
      'inactive' => string '0' (length=1)
      'sort' => string '0' (length=1)
      'created_by' => string '1' (length=1)
      'created_date' => string '2014-03-14 22:09:49' (length=19)
      'modified_by' => string '1' (length=1)
      'modified_date' => string '2014-03-30 19:06:58' (length=19)
  2 => 
    array
      'product_category_code' => string 'flowery-bracelets' (length=17)
      'product_category_desc' => string 'Flowery Bracelets' (length=17)
      'parent_node' => string 'bracelets' (length=9)
      'inactive' => string '0' (length=1)
      'sort' => string '0' (length=1)
      'created_by' => string '1' (length=1)
      'created_date' => string '2014-03-14 22:09:16' (length=19)
      'modified_by' => string '1' (length=1)
      'modified_date' => string '2014-03-30 19:08:44' (length=19)
  3 => 
    array
      'product_category_code' => string 'small-flowery-bracelets' (length=23)
      'product_category_desc' => string 'Small Flowery Bracelets' (length=23)
      'parent_node' => string 'flowery-bracelets' (length=17)
      'inactive' => string '0' (length=1)
      'sort' => string '0' (length=1)
      'created_by' => string '1' (length=1)
      'created_date' => string '2014-03-14 22:08:35' (length=19)
      'modified_by' => string '1' (length=1)
      'modified_date' => string '2014-03-30 19:09:44' (length=19)
  4 => 
    array
      'product_category_code' => string 'summer-dress' (length=12)
      'product_category_desc' => string 'Summer Dress' (length=12)
      'parent_node' => string '' (length=0)
      'inactive' => string '0' (length=1)
      'sort' => string '0' (length=1)
      'created_by' => string '1' (length=1)
      'created_date' => string '2014-03-14 22:09:29' (length=19)
      'modified_by' => string '0' (length=1)
      'modified_date' => null

输出应该是这样的：

• 手镯
  
  
  
  • 小花手链
  
  

  这是我所做的，但它仍然显示子节点a

  Here is what I did but it still display the child nodes a

  function getChildren($rows, $p = 0) {
  $r = array();
  foreach($rows as $row) {
      if ($row['parent_node']==$p) {
          var_dump($p);
          $r[$row['product_category_code']] = getChildren($rows, $row['product_category_code']);
      }
  }
  return $r;
  

  谢谢！

  推荐答案

  这是因为您已经分配了阵列中的类别。你可以做的是做参数传递参数的函数，并且在foreach循环中有能力从已经分配的类别中清除数组。

  It's because you still have the categories in the array when you already assigned them. What you can do is to do the function where you pass the argument as a reference, and the in the foreach loop to have the ability to clear the array from that already assigned category. Simple implementation below.

  function getChildren(&$rows, $p = 0) {
      $r = array();
      foreach($rows as $row_id => $row) {
          if ($row['parent_node']==$p) {
              $r[$row['product_category_code']] = getChildren($rows, $row['product_category_code']);
              unset($rows[$row_id]);
          }
      }
      return $r;
  }
  

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