php怎么实现关注功能

本文操作环境：windows7系统、PHP7.1版、DELL G3电脑

php怎么实现关注功能？

php + redis 实现关注功能：

产品价值

关注功能
2: 功能分析之“关注”功能
3: 平平无奇的「关注」功能，背后有4点重大价值

应用场景

在做PC或者APP端时，掺杂点社交概念就有关注和粉丝功能;
数据量小的话数据库还能支持，如果数据量很庞大还是用缓存比较好。

具体实现

1 控制层实现

<?php

namespace App\Controller\Test;

use App\Controller\AbstractController;
use App\Service\Ptg\TestFollowService;
use Hyperf\Di\Annotation\Inject;
use Hyperf\httpserver\Annotation\Controller;
use Hyperf\HttpServer\Annotation\Middleware;
use Hyperf\HttpServer\Annotation\RequestMapping;


class TestFollowController extends AbstractController
{
    
    protected $testFollowService;

    
    public function follow(Request $request)
    {
        $type = $request->input('type', 'follow');         // 1-关注-follow 2-取消关注-remove
        $userId = $request->input('user_id', 0);    // 我的用户ID
        $otherId = $request->input('other_id', 0);  // 我关注的用户ID
        if ($userId == $otherId) {
            return $this->response->apiResponse();
        }
        $this->testFollowService->follow($type, $userId, $otherId);
        return $this->response->apiResponse();
    }

    
    public function myFollowAndFans(Request $request)
    {
        $type = $request->input('type', 'follow');  // 1-关注-follow 2-粉丝-fans
        $userId = $request->input('user_id', 0);    // 我的用户ID
        $page = $request->input('page', 1);         // 页码
        $limit = $request->input('limit', 10);      // 每页显示条数
        $res = $this->testFollowService->myFollowAndFans($userId, $type, $page, $limit);
        return $this->response->apiResponse($res);
    }
}
?>

2 服务层实现

<?php

namespace App\Service\Ptg;

use App\Repository\Redis\TestFollowRedis;
use App\Service\AbstractService;
use Hyperf\Di\Annotation\Inject;

class TestFollowService extends AbstractService
{
    
    protected $testFollowRedis;

    
    public function follow($type = 'follow', int $userId, int $otherId)
    {
        // 关注
        if ($type === 'follow') {
            // 先处理 Mysql
            // TODO mysql 操作
            // 然后处理 redis
            $this->testFollowRedis->zAddFollow($userId, $otherId);
            $this->testFollowRedis->zAddFans($otherId, $userId);
        }
        // 取消关注
        if ($type === 'remove') {
            // 先处理 mysql
            // TODO mysql 操作
            // 然后处理 redis
            $this->testFollowRedis->zRemFollow($userId, $otherId);
            $this->testFollowRedis->zRemFans($otherId, $userId);
        }
    }

    
    public function myFollowAndFans(int $userId, $type = 'follow', $page = 1, $limit = 10)
    {
        $start = $limit * ($page - 1);
        $end = $start + $limit - 1;
        $res = [];
        if ($type === 'follow') {
            $res = $this->testFollowRedis->zRangeFollow($userId, $start, $end);
        }
        if ($type === 'fans') {
            $res = $this->testFollowRedis->zRangeFans($userId, $start, $end);
        }
        return $res;
    }
}
?>

仓储层实现【推荐：PHP视频教程】

<?php

namespace App\Repository\Redis;

class TestFollowRedis extends AbstractRedis
{
    
    private $followKey = '%u:follow';

    
    private $fansKey = '%u:fans';

    
    public function initPrefix()
    {
        return 'follow:';
    }

    
    public function zAddFollow($userId, $otherId)
    {
        $this->redis->zAdd(sprintf($this->prefix . $this->followKey, $userId), time(), $otherId);
    }

    
    public function zRemFollow($userId, $otherId)
    {
        $this->redis->zRem(sprintf($this->prefix . $this->followKey, $userId), $otherId);
    }

    
    public function zRangeFollow(int $userId, int $start = 0, int $end = 9)
    {
        return $this->redis->zRange(sprintf($this->prefix . $this->followKey, $userId), $start, $end);
    }

    
    public function zRevRangeFollow(int $userId, int $start = 0, int $end = 9)
    {
        return $this->redis->zRevRange(sprintf($this->prefix . $this->followKey, $userId), $start, $end);
    }

    
    public function zAddFans($userId, $otherId)
    {
        $this->redis->zAdd(sprintf($this->prefix . $this->fansKey, $userId), time(), $otherId);
    }

    
    public function zRemFans($userId, $otherId)
    {
        $this->redis->zRem(sprintf($this->prefix . $this->fansKey, $userId), $otherId);
    }

    
    public function zRangeFans(int $userId, int $start = 0, int $end = 9)
    {
        return $this->redis->zRange(sprintf($this->prefix . $this->fansKey, $userId), $start, $end);
    }

    
    public function zRevRangeFans(int $userId, int $start = 0, int $end = 9)
    {
        return $this->redis->zRevRange(sprintf($this->prefix . $this->fansKey, $userId), $start, $end);
    }
}

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