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2019-09-06 23:53:10 +08:00
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thinkphp/library/think/Cache.php Executable file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2017 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace think;
use think\cache\Driver;
class Cache
{
protected static $instance = [];
public static $readTimes = 0;
public static $writeTimes = 0;
/**
* 操作句柄
* @var object
* @access protected
*/
protected static $handler;
/**
* 连接缓存
* @access public
* @param array $options 配置数组
* @param bool|string $name 缓存连接标识 true 强制重新连接
* @return Driver
*/
public static function connect(array $options = [], $name = false)
{
$type = !empty($options['type']) ? $options['type'] : 'File';
if (false === $name) {
$name = md5(serialize($options));
}
if (true === $name || !isset(self::$instance[$name])) {
$class = false !== strpos($type, '\\') ? $type : '\\think\\cache\\driver\\' . ucwords($type);
// 记录初始化信息
App::$debug && Log::record('[ CACHE ] INIT ' . $type, 'info');
if (true === $name) {
return new $class($options);
} else {
self::$instance[$name] = new $class($options);
}
}
return self::$instance[$name];
}
/**
* 自动初始化缓存
* @access public
* @param array $options 配置数组
* @return Driver
*/
public static function init(array $options = [])
{
if (is_null(self::$handler)) {
// 自动初始化缓存
if (!empty($options)) {
$connect = self::connect($options);
} elseif ('complex' == Config::get('cache.type')) {
$connect = self::connect(Config::get('cache.default'));
} else {
$connect = self::connect(Config::get('cache'));
}
self::$handler = $connect;
}
return self::$handler;
}
/**
* 切换缓存类型 需要配置 cache.type 为 complex
* @access public
* @param string $name 缓存标识
* @return Driver
*/
public static function store($name = '')
{
if ('' !== $name && 'complex' == Config::get('cache.type')) {
return self::connect(Config::get('cache.' . $name), strtolower($name));
}
return self::init();
}
/**
* 判断缓存是否存在
* @access public
* @param string $name 缓存变量名
* @return bool
*/
public static function has($name)
{
self::$readTimes++;
return self::init()->has($name);
}
/**
* 读取缓存
* @access public
* @param string $name 缓存标识
* @param mixed $default 默认值
* @return mixed
*/
public static function get($name, $default = false)
{
self::$readTimes++;
return self::init()->get($name, $default);
}
/**
* 写入缓存
* @access public
* @param string $name 缓存标识
* @param mixed $value 存储数据
* @param int|null $expire 有效时间 0为永久
* @return boolean
*/
public static function set($name, $value, $expire = null)
{
self::$writeTimes++;
return self::init()->set($name, $value, $expire);
}
/**
* 自增缓存（针对数值缓存）
* @access public
* @param string $name 缓存变量名
* @param int $step 步长
* @return false|int
*/
public static function inc($name, $step = 1)
{
self::$writeTimes++;
return self::init()->inc($name, $step);
}
/**
* 自减缓存（针对数值缓存）
* @access public
* @param string $name 缓存变量名
* @param int $step 步长
* @return false|int
*/
public static function dec($name, $step = 1)
{
self::$writeTimes++;
return self::init()->dec($name, $step);
}
/**
* 删除缓存
* @access public
* @param string $name 缓存标识
* @return boolean
*/
public static function rm($name)
{
self::$writeTimes++;
return self::init()->rm($name);
}
/**
* 清除缓存
* @access public
* @param string $tag 标签名
* @return boolean
*/
public static function clear($tag = null)
{
self::$writeTimes++;
return self::init()->clear($tag);
}
/**
* 读取缓存并删除
* @access public
* @param string $name 缓存变量名
* @return mixed
*/
public static function pull($name)
{
self::$readTimes++;
self::$writeTimes++;
return self::init()->pull($name);
}
/**
* 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 $expire 有效时间 0为永久
* @return mixed
*/
public static function remember($name, $value, $expire = null)
{
self::$readTimes++;
return self::init()->remember($name, $value, $expire);
}
/**
* 缓存标签
* @access public
* @param string $name 标签名
* @param string|array $keys 缓存标识
* @param bool $overlay 是否覆盖
* @return Driver
*/
public static function tag($name, $keys = null, $overlay = false)
{
return self::init()->tag($name, $keys, $overlay);
}
}