vendor/topthink/framework/src/think/cache/driver/Wincache.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2019 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\driver;

use think\cache\Driver;

/**
 * Wincache缓存驱动
 */
class Wincache extends Driver
{
    /**
     * 配置参数
     * @var array
     */
    protected $options = [
        'prefix'     => '',
        'expire'     => 0,
        'tag_prefix' => 'tag:',
        'serialize'  => [],
    ];

    /**
     * 架构函数
     * @access public
     * @param array $options 缓存参数
     * @throws \BadFunctionCallException
     */
    public function __construct(array $options = [])
    {
        if (!function_exists('wincache_ucache_info')) {
            throw new \BadFunctionCallException('not support: WinCache');
        }

        if (!empty($options)) {
            $this->options = array_merge($this->options, $options);
        }
    }

    /**
     * 判断缓存
     * @access public
     * @param string $name 缓存变量名
     * @return bool
     */
    public function has($name): bool
    {
        $this->readTimes++;

        $key = $this->getCacheKey($name);