使用PHP将JSON数组转换为CSV

我需要让csv具有第一张图片的格式，但我目前得到的是第二张图片作为最终结果，我如何正确设置它，以便MailChimp可以正确读取csv

        $jsonDecoded = json_decode(file_get_contents('emails.json', true), true);   

        $list = array(
            array('Email Address', 'First Name')
        );

        $timestamp = time();
        foreach($jsonDecoded as $entry)
        {
            $new = array($entry['email'], $entry['name']);
            $list[$timestamp] = $new;
        }

        //if old file exist delete
        $fp = fopen('emails.csv', 'w');
        foreach ($list as $fields) {
            fputcsv($fp, $fields);
        }
        fclose($fp);

所需输出

具有上述代码的电流输出

---

我看到的主要问题是，您正在覆盖数组中的同一字段，因为您在循环中使用的是同一个键

    //$timestamp = time(); - only set once, won't change
    foreach($jsonDecoded as $entry)
    {
        // this will update, but won't produce a different key for each iteration, 
        // because the loop might be faster than the smallest precision 
        // that the time() function can produce
        $timestamp = time();
                            
        $new = array($entry['email'], $entry['name']);
        $list[$timestamp] = $new;
    }

我看不出时间戳本身有什么用处，所以我建议只使用

array\u push（）

或下面显示的速记

    foreach($jsonDecoded as $entry)
    {
        $new = array($entry['email'], $entry['name']);
        $list[] = $new; // this just adds the element to the end of the array
    }