TP4初始版本提交

2026-07-03 22:02:48 +08:00 · 2015-01-16 22:42:51 +08:00
commit 223760b65d
139 changed files with 23425 additions and 0 deletions
--- a/Library/Think/Cache/Driver/Memcache.php
+++ b/Library/Think/Cache/Driver/Memcache.php
@@ -0,0 +1,113 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkCache
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace Think\Cache\Driver;
+
+/**
+ * Memcache缓存驱动
+ * @author    liu21st <liu21st@gmail.com>
+ */
+class Memcache {
+    protected $handler  =   null;
+    protected $options  =   [
+        'host'        =>  '127.0.0.1',
+        'port'        =>  11211,
+        'expire'        =>  0,
+        'timeout'     =>  false,
+        'persistent'  =>  false,
+        'length'        =>  0,
+    ];
+
+    /**
+     * 架构函数
+     * @param array $options 缓存参数
+     * @access public
+     */
+    public function __construct($options=[]) {
+        if ( !extension_loaded('memcache') ) {
+            E('_NOT_SUPPERT_:memcache');
+        }
+        if(!empty($options)) {
+            $this->options      =   array_merge($this->options,$options);
+        }
+        $func               =   $this->options['persistent'] ? 'pconnect' : 'connect';
+        $this->handler      =   new \Memcache;
+        $options['timeout'] === false ?
+            $this->handler->$func($options['host'], $options['port']) :
+            $this->handler->$func($options['host'], $options['port'], $options['timeout']);
+    }
+
+    /**
+     * 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 $expire  有效时间（秒）
+     * @return boolen
+     */
+    public function set($name, $value, $expire = null) {
+        if(is_null($expire)) {
+            $expire  =  $this->options['expire'];
+        }
+        $name   =   $this->options['prefix'].$name;
+        if($this->handler->set($name, $value, 0, $expire)) {
+            if($this->options['length']>0) {
+                // 记录缓存队列
+                $queue  =   $this->handler->get('__info__');
+                if(!$queue) {
+                    $queue  =   [];
+                }
+                if(false===array_search($name, $queue))  array_push($queue,$name);
+                if(count($queue) > $this->options['length']) {
+                    // 出列
+                    $key =  array_shift($queue);
+                    // 删除缓存
+                    $this->handler->delete($key);
+                }
+                $this->handler->set('__info__', $queue);
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * 删除缓存
+     * @access public
+     * @param string $name 缓存变量名
+     * @return boolen
+     */
+    public function rm($name, $ttl = false) {
+        $name   =   $this->options['prefix'].$name;
+        return $ttl === false ?
+            $this->handler->delete($name) :
+            $this->handler->delete($name, $ttl);
+    }
+
+    /**
+     * 清除缓存
+     * @access public
+     * @return boolen
+     */
+    public function clear() {
+        return $this->handler->flush();
+    }
+}