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调整类的文件命名规范为psr-4
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120
library/think/cache/driver/Apc.php
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120
library/think/cache/driver/Apc.php
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<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace think\cache\driver;
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use think\Exception;
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/**
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* Apc缓存驱动
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* @author liu21st <liu21st@gmail.com>
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*/
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class Apc
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{
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protected $options = [
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'expire' => 0,
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'prefix' => '',
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'length' => 0,
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];
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/*****************************
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需要支持apc_cli模式
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******************************/
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/**
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* 架构函数
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*
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* @param array $options 缓存参数
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*
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* @throws Exception
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* @access public
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*/
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public function __construct($options = [])
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{
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if (!function_exists('apc_cache_info')) {
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throw new Exception('_NOT_SUPPERT_:Apc');
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}
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if (!empty($options)) {
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$this->options = array_merge($this->options, $options);
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}
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}
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/**
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* 读取缓存
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* @access public
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* @param string $name 缓存变量名
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* @return mixed
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*/
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public function get($name)
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{
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\think\Cache::$readTimes++;
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return apc_fetch($this->options['prefix'] . $name);
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}
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/**
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* 写入缓存
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* @access public
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* @param string $name 缓存变量名
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* @param mixed $value 存储数据
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* @param integer $expire 有效时间(秒)
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* @return bool
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*/
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public function set($name, $value, $expire = null)
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{
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\think\Cache::$writeTimes++;
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if (is_null($expire)) {
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$expire = $this->options['expire'];
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}
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$name = $this->options['prefix'] . $name;
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if ($result = apc_store($name, $value, $expire)) {
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if ($this->options['length'] > 0) {
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// 记录缓存队列
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$queue = apc_fetch('__info__');
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if (!$queue) {
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$queue = [];
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}
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if (false === array_search($name, $queue)) {
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array_push($queue, $name);
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}
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if (count($queue) > $this->options['length']) {
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// 出列
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$key = array_shift($queue);
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// 删除缓存
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apc_delete($key);
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}
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apc_store('__info__', $queue);
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}
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}
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return $result;
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}
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/**删除缓存
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* @access public
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*
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* @param string $name 缓存变量名
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*
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* @return bool|\string[]
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*/
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public function rm($name)
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{
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return apc_delete($this->options['prefix'] . $name);
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}
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/**
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* 清除缓存
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* @access public
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* @return bool
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*/
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public function clear()
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{
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return apc_clear_cache();
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}
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}
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