0

テーブルから次のデータがあります。

+----+---------+-----+---------+--------------+
| id | name    | id2 | sname   | relation     |
+----+---------+-----+---------+--------------+
|  1 | Albaraa |   2 | Brandon | Friend       |
|  1 | Albaraa |   3 | Shen    | Friend       |
|  1 | Albaraa |   4 | Dan     | Professor    |
|  1 | Albaraa |   5 | Bob     | Boss         |
|  1 | Albaraa |   6 | Al      | God Father   |
|  2 | Brandon |   5 | Bob     | Friend       |
|  3 | Shen    |   1 | Albaraa | Friend       |
|  3 | Shen    |   2 | Brandon | Friend       |
|  3 | Shen    |   4 | Dan     | Professor    |
|  4 | Dan     |   1 | Albaraa | Student      |
|  4 | Dan     |   2 | Brandon | Student      |
|  4 | Dan     |   3 | Shen    | Student      |
|  5 | Bob     |   6 | Al      | Best Friend  |
|  6 | Al      |   1 | Albaraa | God Son      |
|  6 | Al      |   5 | Bob     | Best Friends |
+----+---------+-----+---------+--------------+

このデータを php 配列形式で取得します。

Array ( 
[0] => Array ( [id] => 1 [name] => Albaraa [id2] => 2 [sname] => Brandon [relation] => Friend ) 
[1] => Array ( [id] => 1 [name] => Albaraa [id2] => 3 [sname] => Shen [relation] => Friend ) 
[2] => Array ( [id] => 1 [name] => Albaraa [id2] => 4 [sname] => Dan [relation] => Professor ) 
[3] => Array ( [id] => 1 [name] => Albaraa [id2] => 5 [sname] => Bob [relation] => Boss ) 
[4] => Array ( [id] => 1 [name] => Albaraa [id2] => 6 [sname] => Al [relation] => God Father ) 
[5] => Array ( [id] => 2 [name] => Brandon [id2] => 5 [sname] => Bob [relation] => Friend ) 
[6] => Array ( [id] => 3 [name] => Shen [id2] => 1 [sname] => Albaraa [relation] => Friend ) 
[7] => Array ( [id] => 3 [name] => Shen [id2] => 2 [sname] => Brandon [relation] => Friend ) 
[8] => Array ( [id] => 3 [name] => Shen [id2] => 4 [sname] => Dan [relation] => Professor ) 
[9] => Array ( [id] => 4 [name] => Dan [id2] => 1 [sname] => Albaraa [relation] => Student ) 
[10] => Array ( [id] => 4 [name] => Dan [id2] => 2 [sname] => Brandon [relation] => Student ) 
[11] => Array ( [id] => 4 [name] => Dan [id2] => 3 [sname] => Shen [relation] => Student ) 
[12] => Array ( [id] => 5 [name] => Bob [id2] => 6 [sname] => Al [relation] => Best Friend ) 
[13] => Array ( [id] => 6 [name] => Al [id2] => 1 [sname] => Albaraa [relation] => God Son ) 
[14] => Array ( [id] => 6 [name] => Al [id2] => 5 [sname] => Bob [relation] => Best Friends ) )

私が今しなければならないことは、最初の人が追加された配列に取得したデータを設定し、そこから彼の子供が追加され、その子供の子供が追加されることです。 ]):

Array ( 
[id] => 0 
[name] => Albaraa 
[children] => Array ( 
    [0] => Array ( 
    [id] => 1 
    [name] => Brandon 
    [data] => Array ( 
        [relationTo] => Albaraa 
        [relation] => Friend ) 
    [children] => Array (
        [id] => 2 
        [name] => Bob 
        [data] => Array ( 
            [relationTo] => Brandon 
            [relation] => Friend )
         [children] => Array()
    )
    ...and so on
))

上記を出力する場所がありますが、子供がいない場合（空の配列です）、これを正しく行う場所に到達する方法がよくわかりません。これを行うクラスを試しましたが失敗しました。 ..そのため、データを上記のように表示する方法についてのヘルプをいただければ幸いです。

4

1 に答える 1

0

これは、あまり最適化を行わずに PHP で行う方法です。おそらく、SQL 結合を使用して、結果にかなり近い配列を取得することもできます。

// set root stuff
$person1 = $arr[0];

$new_arr = [];
$new_arr['id'] = 0;
$new_arr['name'] = $arr['name'];

// find children
foreach ($arr as $child){
    // if found child
    if ($child['sname'] == $person1['name']){
        // set data
        $child_arr = [];
        $child_arr['id'] = $child['id'];
        $child_arr['name'] = $child['name'];
        $child_arr['data']['relationTo'] = $child['sname'];
        $child_arr['data']['relation'] = $child['relation'];

        $new_arr['children'][] = $child_arr;

        // find grandchildren
        foreach ($arr as $gc){
            // if found grandchild
            if ($gc['sname'] == $child['name']){
                // set data
                $gc_arr = [];
                $gc_arr['id'] = $gc['id'];
                $gc_arr['name'] = $gc['name'];
                $gc_arr['data']['relationTo'] = $gc['sname'];
                $gc_arr['data']['relation'] = $gc['relation'];
                $gc_arr['children'] = []; // assuming you didn't want to go deeper

                $child_arr['children'][] = $gc_arr;
            }
        }
    }
}

さらに深く掘り下げたい場合は、再帰を導入する必要があります。

于 2013-05-03T05:23:44.073 に答える