检查并合并两个数组

Question

我在做什么：

我正在创建一个导航栏。在这里我从数据库中获得价值。在我的数据库中有三列page_name，main_page，sub_page。

代表这样：

 ID   |   Page Name   |   Main Page   |   Sub Page   |
  1   |  Home         |   1           |   0          | 
  2   |  About        |   1           |   0          |
  3   |  Our Work     |   0           |   2          |
  4   |  Contact      |   1           |   0          |

• 如果是Main Page，那么main_page = 1和sub_page = 0。
• 如果是Sub Page，那么其main_page = 0和sub_page id main_page。{/ li} >

我从此查询中获取数据库中的这些值：

    $query = "SELECT * FROM subjects";
    $result = $this->db->query($query)->result_array();

检查我的结果是Main Page还是Sub Page并将其添加到数组中

foreach($result as $row){
            if ($row['main_page'] == '1') {
                $main_page[] = $row['page_name'];//if main page the add them in array
            }else{
                $result1 = "";
                $query1  = "SELECT page_name FROM subjects WHERE id = '$row[sub_page]'";//getting name of main_page
                $result1 = $this->db->query($query1)->result_array();
                $main_page_name = $result1['0']['page_name'];
                $sub_page       = $row['page_name'];
                echo $main_page_name; echo "<br/>";
                $main_sub[] = array('main_page' => $main_page_name, 'sub_page' => $sub_page);//if sub page add main page name and sub page     
            }
 }

之后它正在向我推测这个结果：

Array
(
    [0] => Home
    [1] => About
    [2] => Contact
)
Array
(
    [0] => Array
        (
            [main_page] => About
            [sub_page] => Our Work
        )
)

我想做的事情：

如何合并这两个数组以获得如下数组：

Array
(
    [0] => Home
    [1] => About
         (
            [sub_page] => Our Work
         )
    [2] => Contact
)

是否可以从这两个数组或任何其他方式获得此结果以获得此结果？ 请告诉我，我被困在这里。

Answer 1

我认为你想要的是这样的

Array(
    [0] => array(
       "title" => "Home"
    ),
    [1] => array(
       "title" => "About",
       "sub_page" => array(
          [0] => "Our Work"
       )
    ),
    [2] => array(
       "title" => "Contact"
    )
)

通过这样做可以实现上述结果

    $pageArray = array();
foreach($result as $row){
            if ($row['main_page'] == '1') {
                $pageArray[$row['id']]["title"] = $row['page_name'];
            }else if($row['sub_page']) {
                $pageArray[$row['sub_page']]["sub_page"][] = $row['page_name'];     
            }

 }