初始化项目

2016-06-21 17:12:08 +08:00
commit 7ea154d684
903 changed files with 226100 additions and 0 deletions
--- a/core/library/think/cache/driver/Memcached.php
+++ b/core/library/think/cache/driver/Memcached.php
@@ -0,0 +1,115 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace think\cache\driver;
+
+use think\Cache;
+use think\Exception;
+
+class Memcached
+{
+    protected $handler = null;
+    protected $options = [
+        'host'    => '127.0.0.1',
+        'port'    => 11211,
+        'expire'  => 0,
+        'timeout' => 0, // 超时时间（单位：毫秒）
+        'prefix'  => '',
+    ];
+
+    /**
+     * 架构函数
+     * @param array $options 缓存参数
+     * @access public
+     */
+    public function __construct($options = [])
+    {
+        if (!extension_loaded('memcached')) {
+            throw new \BadFunctionCallException('not support: memcached');
+        }
+        if (!empty($options)) {
+            $this->options = array_merge($this->options, $options);
+        }
+        $this->handler = new \Memcached;
+        // 设置连接超时时间（单位：毫秒）
+        if ($this->options['timeout'] > 0) {
+            $this->handler->setOption(\Memcached::OPT_CONNECT_TIMEOUT, $this->options['timeout']);
+        }
+        // 支持集群
+        $hosts = explode(',', $this->options['host']);
+        $ports = explode(',', $this->options['port']);
+        if (empty($ports[0])) {
+            $ports[0] = 11211;
+        }
+        // 建立连接
+        $servers = [];
+        foreach ((array) $hosts as $i => $host) {
+            $servers[] = [$host, (isset($ports[$i]) ? $ports[$i] : $ports[0]), 1];
+        }
+        $this->handler->addServers($servers);
+    }
+
+    /**
+     * 读取缓存
+     * @access public
+     * @param string $name 缓存变量名
+     * @return mixed
+     */
+    public function get($name)
+    {
+        return $this->handler->get($this->options['prefix'] . $name);
+    }
+
+    /**
+     * 写入缓存
+     * @access public
+     * @param string    $name 缓存变量名
+     * @param mixed     $value  存储数据
+     * @param integer   $expire  有效时间（秒）
+     * @return bool
+     */
+    public function set($name, $value, $expire = null)
+    {
+        if (is_null($expire)) {
+            $expire = $this->options['expire'];
+        }
+        $name   = $this->options['prefix'] . $name;
+        $expire = 0 == $expire ? 0 : time() + $expire;
+        if ($this->handler->set($name, $value, $expire)) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * 删除缓存
+     * @param    string  $name 缓存变量名
+     * @param bool|false $ttl
+     * @return bool
+     */
+    public function rm($name, $ttl = false)
+    {
+        $name = $this->options['prefix'] . $name;
+        return false === $ttl ?
+        $this->handler->delete($name) :
+        $this->handler->delete($name, $ttl);
+    }
+
+    /**
+     * 清除缓存
+     * @access public
+     * @return bool
+     */
+    public function clear()
+    {
+        return $this->handler->flush();
+    }
+}