$tag
$tag : array
标签的缓存Key
标签集合
$tag : array
标签的缓存Key
$handler : \think\cache\Driver
缓存句柄
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2021 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);
namespace think\cache;
/**
* 标签集合
*/
class TagSet
{
/**
* 标签的缓存Key
* @var array
*/
protected $tag;
/**
* 缓存句柄
* @var Driver
*/
protected $handler;
/**
* 架构函数
* @access public
* @param array $tag 缓存标签
* @param Driver $cache 缓存对象
*/
public function __construct(array $tag, Driver $cache)
{
$this->tag = $tag;
$this->handler = $cache;
}
/**
* 写入缓存
* @access public
* @param string $name 缓存变量名
* @param mixed $value 存储数据
* @param integer|\DateTime $expire 有效时间（秒）
* @return bool
*/
public function set(string $name, $value, $expire = null): bool
{
$this->handler->set($name, $value, $expire);
$this->append($name);
return true;
}
/**
* 追加缓存标识到标签
* @access public
* @param string $name 缓存变量名
* @return void
*/
public function append(string $name): void
{
$name = $this->handler->getCacheKey($name);
foreach ($this->tag as $tag) {
$key = $this->handler->getTagKey($tag);
$this->handler->append($key, $name);
}
}
/**
* 写入缓存
* @access public
* @param iterable $values 缓存数据
* @param null|int|\DateInterval $ttl 有效时间 0为永久
* @return bool
*/
public function setMultiple($values, $ttl = null): bool
{
foreach ($values as $key => $val) {
$result = $this->set($key, $val, $ttl);
if (false === $result) {
return false;
}
}
return true;
}
/**
* 如果不存在则写入缓存
* @access public
* @param string $name 缓存变量名
* @param mixed $value 存储数据
* @param int $expire 有效时间 0为永久
* @return mixed
*/
public function remember(string $name, $value, $expire = null)
{
$result = $this->handler->remember($name, $value, $expire);
$this->append($name);
return $result;
}
/**
* 清除缓存
* @access public
* @return bool
*/
public function clear(): bool
{
// 指定标签清除
foreach ($this->tag as $tag) {
$names = $this->handler->getTagItems($tag);
$this->handler->clearTag($names);
$key = $this->handler->getTagKey($tag);
$this->handler->delete($key);
}
return true;
}
}