mp_audio_manage/app/Transformer/Anime/AnimeTransformer.php

<?php

namespace App\Transformer\Anime;

class AnimeTransformer
{

    public function newBuildChapterList($data): array
    {
        return [
            'meta'      => getMeta($data['list']),
            'header'    => $data['header'],
            'list'      => $this->newEachChapterList($data['list']),
        ];
    }

    private function newEachChapterList($list): array
    {
        $result = [];
        if (empty($list)) return $result;

        foreach ($list as $item) {
            $result[] = [
                'cid'               => getProp($item, 'cid'),
                'chapter_name'      => getProp($item, 'chapter_name'),
                'sequence'          => getProp($item, 'sequence'),
                'size'              => getProp($item, 'size'),
                'generate_status'   => getProp($item, 'generate_status'),
                'audio_url'         => getProp($item, 'audio_url'),
                'remark'            => getProp($item, 'remark'),
            ];
        }

        return $result;
    }
}