hainan/app/Http/Controllers/Api/UserChannelController.php

<?php

namespace App\Http\Controllers\Api;
use App\Http\Controllers\Controller;
use App\Models\UserChannel;

class UserChannelController extends Controller
{
    // 我的频道编辑
    public function update()
    {
		$channels = request()->input('channels');
		$channels = json_decode($channels, true);
		if (!$channels) {
			return $this->error('未选择任何频道');
		}
        $channels = array_unique(array_filter($channels));

        $UserChannel = UserChannel::where('user_id', $this->user_id)->first();
        $UserChannel->channels = $channels;
        $UserChannel->save();

        return $this->success();
    }
}