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PHP数组,递归地将数组项的深度附加到具有"深度"键的数组

如何解决《PHP数组,递归地将数组项的深度附加到具有"深度"键的数组》经验,为你挑选了2个好方法。

根据最底部的示例数组,我希望能够在数组内附加每个嵌入数组的深度.例如:

    array (
      53 => 
      array (
        'title' => 'Home',
        'path' => '',
        'type' => '118',
        'pid' => 52,
        'hasChildren' => 0,
      ),

根据下面显示的示例数组具有一个深度,所以它现在应该如下所示:

    array (
      53 => 
      array (
        'title' => 'Home',
        'path' => '',
        'type' => '118',
        'pid' => 52,
        'hasChildren' => 0,
        'depth' => 1,
      ),

等等...

我所做的所有递归数组函数尝试都非常令人尴尬.但是我查看了具有getDepth函数的RecursiveArrayIterator.我对如何将它附加到当前数组感到困惑...非常感谢任何帮助,谢谢.

 
  array (
    'title' => 'Website Navigation',
    'path' => '',
    'type' => '115',
    'pid' => 0,
    'hasChildren' => 1,
    'children' => 
    array (
      53 => 
      array (
        'title' => 'Home',
        'path' => '',
        'type' => '118',
        'pid' => 52,
        'hasChildren' => 0,
      ),
      54 => 
      array (
        'title' => 'Features',
        'path' => 'features',
        'type' => '374',
        'pid' => 52,
        'hasChildren' => 1,
        'children' => 
        array (
          59 => 
          array (
            'title' => 'artistic',
            'path' => 'features/artistic',
            'type' => '374',
            'pid' => 54,
            'hasChildren' => 1,
            'children' => 
            array (
              63 => 
              array (
                'title' => 'galleries',
                'path' => 'features/artistic/galleries',
                'type' => '374',
                'pid' => 59,
                'hasChildren' => 1,
                'children' => 
                array (
                  65 => 
                  array (
                    'title' => 'graphics',
                    'path' => 'features/artistic/galleries/graphics',
                    'type' => '118',
                    'pid' => 63,
                    'hasChildren' => 0,
                  ),
                  67 => 
                  array (
                    'title' => 'mixed medium',
                    'path' => 'features/artistic/galleries/mixed-medium',
                    'type' => '118',
                    'pid' => 63,
                    'hasChildren' => 0,
                  ),
                  64 => 
                  array (
                    'title' => 'overview',
                    'path' => 'features/artistic/galleries',
                    'type' => '118',
                    'pid' => 63,
                    'hasChildren' => 0,
                  ),
                  68 => 
                  array (
                    'title' => 'photography',
                    'path' => 'features/artistic/galleries/photography',
                    'type' => '118',
                    'pid' => 63,
                    'hasChildren' => 0,
                  ),
                  66 => 
                  array (
                    'title' => 'traditional',
                    'path' => 'features/artistic/galleries/traditional',
                    'type' => '118',
                    'pid' => 63,
                    'hasChildren' => 0,
                  ),
                ),
              ),
              62 => 
              array (
                'title' => 'overview',
                'path' => 'features/artistic',
                'type' => '118',
                'pid' => 59,
                'hasChildren' => 0,
              ),
              69 => 
              array (
                'title' => 'tutorials',
                'path' => 'features/artistic/tutorials',
                'type' => '374',
                'pid' => 59,
                'hasChildren' => 1,
                'children' => 
                array (
                  71 => 
                  array (
                    'title' => 'by category',
                    'path' => 'features/artistic/tutorials/by-category/',
                    'type' => '118',
                    'pid' => 69,
                    'hasChildren' => 0,
                  ),
                  72 => 
                  array (
                    'title' => 'by date',
                    'path' => 'features/artistic/tutorials/by-date/',
                    'type' => '118',
                    'pid' => 69,
                    'hasChildren' => 0,
                  ),
                  70 => 
                  array (
                    'title' => 'overview',
                    'path' => 'features/artistic/tutorials',
                    'type' => '118',
                    'pid' => 69,
                    'hasChildren' => 0,
                  ),
                ),
              ),
            ),
          ),
          58 => 
          array (
            'title' => 'overview',
            'path' => 'features',
            'type' => '118',
            'pid' => 54,
            'hasChildren' => 0,
          ),
          61 => 
          array (
            'title' => 'projects / labs',
            'path' => 'features/projects-labs/',
            'type' => '374',
            'pid' => 54,
            'hasChildren' => 0,
          ),
          60 => 
          array (
            'title' => 'web development',
            'path' => 'features/web-development',
            'type' => '374',
            'pid' => 54,
            'hasChildren' => 1,
            'children' => 
            array (
              74 => 
              array (
                'title' => 'articles',
                'path' => 'features/web-development/articles/',
                'type' => '374',
                'pid' => 60,
                'hasChildren' => 0,
              ),
              73 => 
              array (
                'title' => 'overview',
                'path' => 'features/web-development',
                'type' => '118',
                'pid' => 60,
                'hasChildren' => 0,
              ),
              75 => 
              array (
                'title' => 'tutorials',
                'path' => 'features/web-development/tutorials',
                'type' => '374',
                'pid' => 60,
                'hasChildren' => 0,
              ),
            ),
          ),
        ),
      ),
      55 => 
      array (
        'title' => 'Activity',
        'path' => 'activity',
        'type' => '374',
        'pid' => 52,
        'hasChildren' => 0,
      ),
      56 => 
      array (
        'title' => 'Blog',
        'path' => 'blog',
        'type' => '374',
        'pid' => 52,
        'hasChildren' => 0,
      ),
      57 => 
      array (
        'title' => 'About',
        'path' => 'about',
        'type' => '374',
        'pid' => 52,
        'hasChildren' => 1,
        'children' => 
        array (
          76 => 
          array (
            'title' => 'the author',
            'path' => 'about/the-author',
            'type' => '118',
            'pid' => 57,
            'hasChildren' => 0,
          ),
          77 => 
          array (
            'title' => 'the website',
            'path' => 'about/the-website',
            'type' => '118',
            'pid' => 57,
            'hasChildren' => 0,
          ),
        ),
      ),
    ),
  ),
);

print_r($example);

?>

OIS.. 8

我假设有另一个数组(在顶部没有包含在你的示例代码中.这样的东西?

function array_set_depth($array, $depth = -1)
{
  $subdepth = $depth + 1;
  if ($depth < 0) {
    foreach ($array as $key => $subarray) {
      $temp[$key] = array_set_depth(($subarray), $subdepth);
    }
  }
  if ($array['hasChildren'] && isset($array['children'])) {
    foreach ($array['children'] as $key => $subarray) {
      $temp[$key] = array_set_depth($subarray, $subdepth);
    }
    $array['children'] = $temp;
  }
  $array['depth'] = $depth;
  return $array;
}

用法示例,我将您的数组设置为值$ a:

$b = array_set_depth($a);
print_r($b);

编辑:

要在孩子们之前设置深度以进行漂亮的打印,您可以这样做:

function array_set_depth($array, $depth = -1)
{
  $subdepth = $depth + 1;
  if ($depth < 0) {
    foreach ($array as $key => $subarray) {
      $temp[$key] = array_set_depth(($subarray), $subdepth);
    }
    return $temp;
  }
  $array['depth'] = $depth;
  if ($array['hasChildren'] && isset($array['children'])) {
    foreach ($array['children'] as $key => $subarray) {
      $temp[$key] = array_set_depth($subarray, $subdepth);
    }
    unset($array['children']);
    $array['children'] = $temp;
  }
  return $array;
}


Paul Dixon.. 5

像这样的递归函数应该这样做吗?

function setDepth(&$a, $depth)
{
    $a['depth']=$depth;
    foreach($a as $key=>$value)
    {
        if (is_array($value))
           setDepth($a[$key], $depth+1);
    }

}

需要注意的是,数组是通过引用传递的,因此我们可以对其进行修改.请注意,我们还在对setDepth的递归调用中使用此引用.虽然我使用foreach是为了方便,但$ value变量是一个副本,并且将它传递给setDepth只会在foreach循环的范围内进行短暂的更改.



1> OIS..:

我假设有另一个数组(在顶部没有包含在你的示例代码中.这样的东西?

function array_set_depth($array, $depth = -1)
{
  $subdepth = $depth + 1;
  if ($depth < 0) {
    foreach ($array as $key => $subarray) {
      $temp[$key] = array_set_depth(($subarray), $subdepth);
    }
  }
  if ($array['hasChildren'] && isset($array['children'])) {
    foreach ($array['children'] as $key => $subarray) {
      $temp[$key] = array_set_depth($subarray, $subdepth);
    }
    $array['children'] = $temp;
  }
  $array['depth'] = $depth;
  return $array;
}

用法示例,我将您的数组设置为值$ a:

$b = array_set_depth($a);
print_r($b);

编辑:

要在孩子们之前设置深度以进行漂亮的打印,您可以这样做:

function array_set_depth($array, $depth = -1)
{
  $subdepth = $depth + 1;
  if ($depth < 0) {
    foreach ($array as $key => $subarray) {
      $temp[$key] = array_set_depth(($subarray), $subdepth);
    }
    return $temp;
  }
  $array['depth'] = $depth;
  if ($array['hasChildren'] && isset($array['children'])) {
    foreach ($array['children'] as $key => $subarray) {
      $temp[$key] = array_set_depth($subarray, $subdepth);
    }
    unset($array['children']);
    $array['children'] = $temp;
  }
  return $array;
}



2> Paul Dixon..:

像这样的递归函数应该这样做吗?

function setDepth(&$a, $depth)
{
    $a['depth']=$depth;
    foreach($a as $key=>$value)
    {
        if (is_array($value))
           setDepth($a[$key], $depth+1);
    }

}

需要注意的是,数组是通过引用传递的,因此我们可以对其进行修改.请注意,我们还在对setDepth的递归调用中使用此引用.虽然我使用foreach是为了方便,但$ value变量是一个副本,并且将它传递给setDepth只会在foreach循环的范围内进行短暂的更改.

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