多維數組Foreach樹

Question

我試圖將一個數組與父數和子數做成一個新的多維。我能夠靠近我想，但不要看起來不錯。

$value->menu_item_parent //Contains the parent value that can be used for key 

我錯過了什麼？

$the_mega = array(); 
foreach ($menuitems as $key => $value) { 
    if ($value->menu_item_parent=='0') { 
     $the_mega["parents"][]=$value->title; 
    }else{ 
     $the_mega[$value->title]["childs"]=$value->title; 
    }  
} 
} 
echo '<pre>'; 
print_r($the_mega); 
echo '</pre>'; 

---

Array 
(
    [parents] => Array 
     (
      [0] => Parent 1 
      [1] => Parent 2 
     ) 

    [Child 1] => Array 
     (
      [childs] => Child 1 
     ) 

    [Child 2] => Array 
     (
      [childs] => Child 2 
     ) 

    [Child 3] => Array 
     (
      [childs] => Child 3 
     ) 

) 

Answer 1

試試這個：

$the_mega = array(); 
foreach ($menuitems as $key => $value) { 
    if ($value->menu_item_parent=='0') { 
     $the_mega[$key]['parents'][]=$value->title; 
    }else{ 
     $the_mega[$value->title]['childs'][]=$value->title; 
    }  
}