107 lines
2.3 KiB
PHP
107 lines
2.3 KiB
PHP
<?php
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namespace top\library\cache\driver;
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use top\library\cache\ifs\CacheIfs;
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use top\library\Config;
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use top\traits\Instance;
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/**
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* Redis缓存
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* Class RedisCache
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* @package top\library\cache
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*/
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class RedisCache implements CacheIfs
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{
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use Instance;
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/**
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* redis配置
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* @var array
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*/
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private $config = [];
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/**
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* redis实例
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* @var null|\Redis
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*/
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private $redis = null;
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/**
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* 复写构造方法，初始化操作
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* Redis constructor.
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*/
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private function __construct()
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{
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$config = \config('redis');
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$this->redis = new \Redis();
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try {
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$this->redis->connect($config['host'], $config['port']);
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} catch (\Exception $e) {
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throw new \Exception(mb_convert_encoding($e->getMessage(), 'utf8', 'gbk'));
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}
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if ($config['auth']) {
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$this->redis->auth($config['auth']);
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}
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}
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/**
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* 设置缓存
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* @param string $key
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* @param string $value
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* @param int $timeout
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* @return bool
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*/
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public function set($key, $value, $expire = 10)
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{
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$data = ['value' => $value];
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$value = serialize($data);
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$timeout = $expire == 0 ? null : $expire;
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return $this->redis->set($key, $value, $expire);
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}
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/**
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* 获取缓存的值
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* @param string $key
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* @param string $callable
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* @return bool|mixed|string
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*/
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public function get($key, $callable = null)
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{
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$status = $this->exists($key);
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$value = $status ? $this->redis->get($key) : false;
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// 如果获取不到结果但是callable存在
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if ($value === false) {
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if (is_callable($callable)) {
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return $callable($this);
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}
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return false;
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} else {
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$data = unserialize($value);
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// 返回转换后的数据
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return $data['value'];
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}
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}
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/**
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* 删除缓存
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* @param string $key
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* @return int
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*/
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public function remove($key)
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{
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return $this->redis->del($key);
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}
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/**
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* 判断缓存是否设置
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* @param $key
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* @return bool
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*/
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public function exists($key)
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{
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return $this->redis->exists($key) ? true : false;
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}
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}
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