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core/cache/Memcache.php

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+<?php
+/**
+ * @copyright (C)2016-2099 Hnaoyun Inc.
+ * @author XingMeng
+ * @email hnxsh@foxmail.com
+ * @date 2017年10月24日 
+ *  Memcache缓存类
+ */
+namespace core\cache;
+
+use core\basic\Config;
+
+class Memcache implements Builder
+{
+
+    protected static $memcache;
+
+    protected $conn;
+
+    // 禁止直接实例化
+    private function __construct()
+    {}
+
+    private function __clone()
+    {
+        error('禁止克隆实例！');
+    }
+
+    // 单一实例获取
+    public static function getInstance()
+    {
+        if (! self::$memcache) {
+            self::$memcache = new self();
+        }
+        return self::$memcache;
+    }
+
+    // 初始化连接
+    protected function conn()
+    {
+        if (! $this->conn) {
+            $this->conn = new Memcache();
+            $server = Config::get('cache.server');
+            if (is_multi_array($server)) {
+                foreach ($server as $value) {
+                    $this->conn->addserver($value['host'], $value['port']);
+                }
+            } else {
+                $this->conn->addserver($server['host'], $server['port']);
+            }
+        }
+        return $this->conn;
+    }
+
+    // 设置值
+    public function set($key, $value)
+    {
+        $memcache = $this->conn();
+        return $memcache->set($key, $value);
+    }
+
+    // 读取值
+    public function get($key)
+    {
+        $memcache = $this->conn();
+        return $memcache->get($key);
+    }
+
+    // 删除
+    public function delete($key)
+    {
+        $memcache = $this->conn();
+        return $memcache->delete($key);
+    }
+
+    // 清理所有
+    public function flush()
+    {
+        $memcache = $this->conn();
+        return $memcache->flush();
+    }
+
+    // 版本信息
+    public function status()
+    {
+        $memcache = $this->conn();
+        return $memcache->getExtendedStats();
+    }
+
+    // 关闭连接
+    public function __destruct()
+    {
+        $memcache = $this->conn();
+        $memcache->close();
+    }
+}