多维数组转换为CSV

Question

我得到了这个数组：

array (
  'cat' => 
  array (
    0 => 
    array (
      'name' => 'Sales',
      'url' => 'http://videos.volkswagen.nl/videos/videos/',
      'subs' => 
      array (
        0 => 
        array (
          'full_url' => 'http://videos.volkswagen.nl/videos/assistentiesystemen/',
          'key' => 'assistentiesystemen',
          'key_clean' => 'Assistentiesystemen',
          'videos' => 
          array (
            0 => 
            array (
              'nice_name' => 'Multi Collision braking system',
              'vid_url' => 'www.youtube.com/video/3lGfTZdVK1s',
            ),
            1 => 
            array (
              'nice_name' => 'Lane Assist',
              'vid_url' => 'www.youtube.com/video/II68oVm4zro',
            ),
            2 => 
            array (
              'nice_name' => 'Traffic Jam Assist',
              'vid_url' => 'www.youtube.com/video/tCe8Zpz8ceQ',
            ),
            3 => 
            array (
              'nice_name' => 'Sign assist',
              'vid_url' => 'www.youtube.com/video/SypjMPcSWfk',
            ),
            4 => 
            array (
              'nice_name' => 'Park assist',
              'vid_url' => 'www.youtube.com/video/38BbjLmVJXk',
            ),
            5 => 
            array (
              'nice_name' => 'Front assist',
              'vid_url' => 'www.youtube.com/video/kCpQojqZeWE',
            ),
            6 => 
            array (
              'nice_name' => 'Trailer assist',
              'vid_url' => 'www.youtube.com/video/N0fa4dUBkvE',
            ),
            7 => 
            array (
              'nice_name' => 'Area view',
              'vid_url' => 'www.youtube.com/video/6mgDraWpGvE',
            ),
          ),
        ),
        1 => 
        array (
          'full_url' => 'http://videos.volkswagen.nl/videos/comfortsystemen/',
          'key' => 'comfortsystemen',
          'key_clean' => 'Comfortsystemen',
          'videos' => 
          array (
            0 => 
            array (
              'nice_name' => 'Gesture Control',
              'vid_url' => 'www.youtube.com/video/bOejnFiC88E',
            ),
            1 => 
            array (
              'nice_name' => 'ACC Adaptive Cruise Control',
              'vid_url' => 'www.youtube.com/video/W5L75iR4ySw',
            ),
            2 => 
            array (
              'nice_name' => 'Rear View',
              'vid_url' => 'www.youtube.com/video/v272JxYMjlo',
            ),
            3 => 
            array (
              'nice_name' => 'Hill Hold',
              'vid_url' => 'www.youtube.com/video/IzZFSp0Z8ZQ',
            ),
            4 => 
            array (
              'nice_name' => 'Dynamic Light Assist',
              'vid_url' => 'www.youtube.com/video/mRWEdXZYcio',
            ),
          ),
        ),
      );

我希望将所有数据转换为csv文件。问题是，由于所有的子数组，我似乎无法使其正常工作。

这是我尝试过的方法：

header("Content-Disposition: attachment; filename=\"demo.xls\"");
header("Content-Type: application/vnd.ms-excel;");
header("Pragma: no-cache");
header("Expires: 0");
$out = fopen("php://output", 'w');
foreach ($result as $data)
{
    $finalResult = [];
    array_walk_recursive($data, function($item) use (&$result) {
            $finalResult[] = $item;
        });
    fputcsv($out, $finalResult,"\t");
}   
fclose($out);

这是我希望在Excel中看到的CSV文件的样子：

你有什么想法可以让这个工作起来吗？任何帮助都将不胜感激。

- Remco A

---

请问您能否更新问题，展示一行您期望看到的CSV输出？您希望如何将多维数据压缩为两个维度？ - Matt

添加了一个示例 @mkaatman - Remco A

CSV是逗号分隔值，每行一个记录。我在你的输出示例中没有看到任何逗号，它看起来不像我见过的任何CSV。 - Matt

var_export()也不完整？你帮助我们，我们帮助你！ - RiggsFolly

抱歉示例不好，因为我只知道在Excel中的样子，因为我要导出到Excel。已将示例添加到问题中。 - Remco A

Answer 1

这可能是您想要做的事情

。

$out = fopen("tst.csv", 'w');
$finalResult = [];
foreach ($result['cat'] as $sales){
    foreach ( $sales['subs'] as $occ => $stuff){
        foreach ( $stuff['videos'] as $video ) {
            $line = [$sales['name'], $stuff['key'], $video['vid_url'], $video['nice_name'] ];
            //$finalResult[] = $a;
            fputcsv($out, $line);
        }
    }
}
//print_r($finalResult);
fclose($out);

这会产生

Sales,assistentiesystemen,www.youtube.com/video/3lGfTZdVK1s,"Multi Collision braking system"
Sales,assistentiesystemen,www.youtube.com/video/II68oVm4zro,"Lane Assist"
Sales,assistentiesystemen,www.youtube.com/video/tCe8Zpz8ceQ,"Traffic Jam Assist"
Sales,assistentiesystemen,www.youtube.com/video/SypjMPcSWfk,"Sign assist"
Sales,assistentiesystemen,www.youtube.com/video/38BbjLmVJXk,"Park assist"
Sales,assistentiesystemen,www.youtube.com/video/kCpQojqZeWE,"Front assist"
Sales,assistentiesystemen,www.youtube.com/video/N0fa4dUBkvE,"Trailer assist"
Sales,assistentiesystemen,www.youtube.com/video/6mgDraWpGvE,"Area view"
Sales,comfortsystemen,www.youtube.com/video/bOejnFiC88E,"Gesture Control"
Sales,comfortsystemen,www.youtube.com/video/W5L75iR4ySw,"ACC Adaptive Cruise Control"
Sales,comfortsystemen,www.youtube.com/video/v272JxYMjlo,"Rear View"
Sales,comfortsystemen,www.youtube.com/video/IzZFSp0Z8ZQ,"Hill Hold"
Sales,comfortsystemen,www.youtube.com/video/mRWEdXZYcio,"Dynamic Light Assist"

- RiggsFolly