小問題問心無愧這個詞導航腳本

Question

我控制器

[code]$data['navlist'] = $this->MCats->getCategoriesNav();[/code] 

模型

[code] 
    function getCategoriesNav(){ 
     $data = array(); 
     $this->db->group_by('parentid', 'id'); 
     $Q = $this->db->get('categories'); 
     if($Q->num_rows >0){ 
      foreach($Q->result() as $row){ 
       if($row->parentid > 0){ 
        $data[0][$row->parentid]['children'][$row->id] = $row->name; 
       }else{ 
       $data[0][$row->id]['name'] = $row->name; 
       } 
      } 
     } 
     $Q->free_result(); 
     return $data; 
    } 
[/code] 

和觀點

[code]if(count($navlist)){ 
    echo "<ul>"; 
    foreach($navlist as $key => $list){ 
     foreach($list as $topkey => $toplist){ 
      echo "<li class='cat'>"; 
      echo anchor("welcome/cat/$topkey", $toplist); 
      echo "</li>\n"; 
      if(count($toplist['children'])){ 
      foreach($toplist['children'] as $subkey => $subname){ 
       echo "\n<li class='subcat'>"; 
       echo anchor("welcome/cat/$subkey", $subname); 
       echo "</li>"; 
       } 
      } 
     } 

    } 
    echo "</ul>\n"; 

}[/code] 

我不是頂部菜單越來越類別名稱，請幫助我，

Answer 1

它看起來像你在兩個不同的地方使用的$ data [0]應該是$ data，而你正在將所有的循環db結果加載到一個數組鍵中，鍵0