使用fputcsv从多维数组创建CSV

Question

我正在尝试将多维数组放入csv文件中.数组中的数据是这样的:

Array
(
 [0] => Array
    (
        [product_id] => 1111
        [name] => Alcatel One Touch Idol 2
        [keyword] => alcatel-one-touch-idol-2
        [options] => Array
            (
                [0] => Array
                    (
                        [price] => 54.0000
                    )

                [1] => Array
                    (
                        [price] => 42.0000
                    )

                [2] => Array
                    (
                        [price] => 10.0000
                    )

                [3] => Array
                    (
                        [price] => 
                    )

                [4] => Array
                    (
                        [price] => 
                    )

                [5] => Array
                    (
                        [price] => 
                    )

                [6] => Array
                    (
                        [price] => 
                    )

                [7] => Array
                    (
                        [price] => 
                    )

                [8] => Array
                    (
                        [price] => 
                    )

                [9] => Array
                    (
                        [price] => 
                    )

            )

    )

[1] => Array
    (...... etc)

我获得了所有顶级数据,但是一旦它到达选项数组,我就会收到 Array to string conversion错误.所以我有两个问题,我首先需要了解为什么我得到这个错误,然后我需要fputcsv每个产品一行上的所有这些信息.

到目前为止,我有这个解析数组到csv:

$output = fopen("php://output",'w') or die("Can't open php://output");
            header("Content-Type:application/csv"); 
            header("Content-  Disposition:attachment;filename=product_catalog.csv"); 
            $first_line = explode(",", $first_line);
            fputcsv($output, $first_line);
            foreach($csv as $file) {
                fputcsv($output, $file);
            }
            fclose($output) or die("Can't close php://output");

如果有人能帮助我,我真的很感激.问候.

Answer 1

我建议先将每个阵列展平:

foreach ($csv as $file) {
    $result = [];
    array_walk_recursive($file, function($item) use (&$result) {
        $result[] = $item;
    });
    fputcsv($output, $result);
}

在每次迭代中,它将创建一个这样的数组:

[1111, 'Alcatel One Touch Idol 2', 'alcatel-one-touch-idol-2', 54, 42, ...]