项目重构-缓存组件

#### 记性不好，做个备份，下次新项目的话可以直接用
```php
<?php

namespace lib;

use Closure;
use support\Redis;

trait DataCache
{
    /**
     * null结果不做缓存 只有非null结果才做缓存
     * @param Closure $callback 回调
     * @param mixed &$cache 静态缓存
     * @param $string|array $redisKey redisKey 名
     * @param ..mixed ...$params 回调入参
     * @return mixed
     */
    protected function getCachedResult(Closure $callback, &$cache, $redisKey, ...$params)
    {
        $key = '';
        $orginParams = $params;
        foreach ($params as  &$v) {
            if (is_string($v)) {
                $key .= $v . ':';
            } else {
                $key .= json_encode($v) . ':';
                $v    = json_encode($v);
            }
        }
        $key = rtrim($key, ':');
        if (isset($cache[$key])) {
            return $cache[$key];
        }

if (empty($cache)) {
            $cache = null;
        }
        if (!empty($cache) && count($cache) > 1000) {//极端情况自动清理内存
            $cache = null;
        }
        //get from redis
        if (!empty($redisKey) && $this->isRedisOn($redisKey)) {
            $ret = Redis::get($this->getRedisKey($redisKey, ...$params));
            if (!empty($ret)) {
                $cache[$key] = json_decode($ret, true);;
                return $cache[$key];
            }
        }

$ret = $callback(...$orginParams);
        if ($ret !== null) {
            $cache[$key] = $ret;
            if (!empty($redisKey)) {
                Redis::set($this->getRedisKey($redisKey, ...$params), json_encode($ret), 'EX', $this->getRedisTtl($redisKey));
            }
        }
        return $ret;
    }

/**
     * 是否读取
     * @param $redisKey
     * @return mixed|true
     */
    private function isRedisOn($redisKey)
    {
        if (is_array($redisKey)) {
            return $redisKey['on'] ?? true;
        }
        return true;
    }

/**
     * 删除缓存
     * @param $redisKey
     * @param ...$params
     * @return int
     */
    protected function delRedisCache($redisKey, ...$params)
    {
        return Redis::del($this->getRedisKey($redisKey, ...$params));
    }

/**
     * 设置过期时间
     * @param $redisKey
     * @return int|mixed
     */
    private function getRedisTtl($redisKey)
    {
        if (is_array($redisKey)) {
            return $redisKey['ttl'] ?? 86400;
        }
        return 86400;
    }

/**
     * 获取redisKey
     * @param $redisKey
     * @param ...$params
     * @return mixed
     */
    protected function getRedisKey($redisKey, ...$params)
    {
        if (is_array($redisKey)) {
            return call_user_func('sprintf', $redisKey['key'], ...$params);
        }
        return call_user_func('sprintf', $redisKey, ...$params);
    }
}
```