Question

如何将基于阵列的名称菜单类别和名称菜单分组？是否有任何本机PHP功能可用于执行此操作？我在谷歌上搜索过但还没有很好理解

(int) 0 => array(
    'MenuCategory' => array(
        'name' => 'Products'
    ),
    'Menu' => array(
        'name' => 'A',
        'url' => 'a'
    ),
    'Sub' => array(
        'name' => 'A1',
        'url' => 'a1'
    )
),
(int) 1 => array(
    'MenuCategory' => array(
        'name' => 'Products'
    ),
    'Menu' => array(
        'name' => 'A',
        'url' => 'a'
    ),
    'Sub' => array(
        'name' => 'A2',
        'url' => 'a2'
    )
),
(int) 2 => array(
    'MenuCategory' => array(
        'name' => 'Products'
    ),
    'Menu' => array(
        'name' => 'B',
        'url' => 'b'
    ),
    'Sub' => array(
        'name' => null,
        'url' => null
    )
),
(int) 3 => array(
    'MenuCategory' => array(
        'name' => 'Data'
    ),
    'Menu' => array(
        'name' => 'A',
        'url' => 'a'
    ),
    'Sub' => array(
        'name' => null,
        'url' => null
    )
),
(int) 4 => array(
    'MenuCategory' => array(
        'name' => 'Data'
    ),
    'Menu' => array(
        'name' => 'B',
        'url' => 'b'
    ),
    'Sub' => array(
        'name' => 'B1',
        'url' => 'b1'
    )
),
(int) 5 => array(
    'MenuCategory' => array(
        'name' => 'Data'
    ),
    'Menu' => array(
        'name' => 'C',
        'url' => 'c'
    ),
    'Sub' => array(
        'name' => null,
        'url' => null
    )
),
(int) 6 => array(
    'MenuCategory' => array(
        'name' => 'Report'
    ),
    'Menu' => array(
        'name' => 'A',
        'url' => 'a'
    ),
    'Sub' => array(
        'name' => null,
        'url' => null
    )
),
(int) 7 => array(
    'MenuCategory' => array(
        'name' => 'Report'
    ),
    'Menu' => array(
        'name' => 'B',
        'url' => 'b'
    ),
    'Sub' => array(
        'name' => null,
        'url' => null
    )
),
(int) 8 => array(
    'MenuCategory' => array(
        'name' => 'Report'
    ),
    'Menu' => array(
        'name' => 'C',
        'url' => 'c'
    ),
    'Sub' => array(
        'name' => null,
        'url' => null
    )
),

这是稍后会发布的结果

产品
- A
  - A1
  - A2
- B
数据
- A
- B
  - B1
- C
报告
- A
- B
- C

Answer 1

按级别分组

使用foreach对它们进行排序示例

foreach ($input_arr as $key => &$entry) {
    $level_arr[$entry['level']][$key] = $entry;
}

Answer 2

如果我假设你的数组变量名是$menu，请尝试使用此代码。

$new = array();
array_map(function($a) use(&$new){
    if($a['Sub']['name'])
        $new[$a['MenuCategory']['name']][$a['Menu']['name']][$a['Sub']['name']] = $a['Sub']['name'];
    else 
        $new[$a['MenuCategory']['name']][$a['Menu']['name']] = $a['Menu']['name'];
}, $menu);
print_r($new);

并将输出

Array
(
    [Products] => Array
        (
            [A] => Array
                (
                    [A1] => A1
                    [A2] => A2
                )

            [B] => B
        )

    [Data] => Array
        (
            [A] => A
            [B] => Array
                (
                    [B1] => B1
                )

            [C] => C
        )

    [Report] => Array
        (
            [A] => A
            [B] => B
            [C] => C
        )

)

希望得到这个帮助。

如何对多维数组进行分组

2 个答案: