增加接口类 规范驱动扩展

library/think/cache/driver/Apc.php

@@ -18,7 +18,7 @@ use think\Exception;
  * Apc缓存驱动
  * @author    liu21st <liu21st@gmail.com>
  */
-class Apc
+class Apc implements CacheInterface
 {
 
     protected $options = [

library/think/cache/driver/CacheInterface.php

@@ -0,0 +1,50 @@
+<?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;
+
+interface CacheInterface
+{
+
+    /**
+     * 读取缓存
+     * @access public
+     * @param string $name 缓存变量名
+     * @return mixed
+     */
+    public function get($name);
+
+    /**
+     * 写入缓存
+     * @access public
+     * @param string $name 缓存变量名
+     * @param mixed $value  存储数据
+     * @param int $expire  有效时间 0为永久
+     * @return boolean
+     */
+    public function set($name, $value, $expire = null);
+
+    /**
+     * 删除缓存
+     * @access public
+     * @param string $name 缓存变量名
+     * @return boolean
+     */
+    public function rm($name);
+
+    /**
+     * 清除缓存
+     * @access public
+     * @return boolean
+     */
+    public function clear();
+
+}

library/think/cache/driver/Db.php

@@ -24,23 +24,23 @@ use think\Cache;
  *    );
  * @author    liu21st <liu21st@gmail.com>
  */
-class Db
+class Db implements CacheInterface
 {
 
     protected $handler = null;
     protected $options = [
-        'type'      => '',
-        'dsn'       => '',
-        'hostname'  => '',
-        'hostport'  => '',
-        'username'  => '',
-        'password'  => '',
-        'database'  => '',
-        'charset'   => '',
-        'table'     => '',
-        'prefix'    => '',
-        'expire'    => 0,
-        'length'    => 0,
+        'type'     => '',
+        'dsn'      => '',
+        'hostname' => '',
+        'hostport' => '',
+        'username' => '',
+        'password' => '',
+        'database' => '',
+        'charset'  => '',
+        'table'    => '',
+        'prefix'   => '',
+        'expire'   => 0,
+        'length'   => 0,
     ];
 
     /**
@@ -162,4 +162,4 @@ class Db
         return $this->handler->execute('TRUNCATE TABLE `' . $this->options['table'] . '`');
     }
 
-}
+}

library/think/cache/driver/File.php

@@ -17,7 +17,7 @@ use think\Cache;
  * 文件类型缓存类
  * @author    liu21st <liu21st@gmail.com>
  */
-class File
+class File implements CacheInterface
 {
 
     protected $options = [
@@ -186,7 +186,7 @@ class File
      */
     public function clear()
     {
-        $fileLsit = (array)glob($this->options['path'].'*');
+        $fileLsit = (array) glob($this->options['path'] . '*');
         foreach ($fileLsit as $path) {
             is_file($path) && unlink($path);
         }

library/think/cache/driver/Lite.php

@@ -17,7 +17,7 @@ use think\Cache;
  * 文件类型缓存类
  * @author    liu21st <liu21st@gmail.com>
  */
-class Lite
+class Lite implements CacheInterface
 {
     protected $options = [
         'prefix' => '',

library/think/cache/driver/Memcache.php

@@ -14,7 +14,7 @@ namespace think\cache\driver;
 use think\Cache;
 use think\Exception;
 
-class Memcache
+class Memcache implements CacheInterface
 {
     protected $handler = null;
     protected $options = [

library/think/cache/driver/Memcached.php

@@ -14,7 +14,7 @@ namespace think\cache\driver;
 use think\Cache;
 use think\Exception;
 
-class Memcached
+class Memcached implements CacheInterface
 {
     protected $handler = null;
     protected $options = [

library/think/cache/driver/Redis.php

@@ -19,7 +19,7 @@ use think\Exception;
  * 要求安装phpredis扩展：https://github.com/nicolasff/phpredis
  * @author    尘缘 <130775@qq.com>
  */
-class Redis
+class Redis implements CacheInterface
 {
     protected $handler = null;
     protected $options = [
@@ -65,10 +65,10 @@ class Redis
     public function get($name)
     {
         Cache::$readTimes++;
-        $value = $this->handler->get($this->options['prefix'] . $name);
-        $jsonData  = json_decode( $value, true );
+        $value    = $this->handler->get($this->options['prefix'] . $name);
+        $jsonData = json_decode($value, true);
         // 检测是否为JSON数据 true 返回JSON解析数组, false返回源数据 byron sampson<xiaobo.sun@qq.com>
-        return ($jsonData === null) ? $value : $jsonData;
+        return (null === $jsonData) ? $value : $jsonData;
     }
 
     /**
@@ -87,7 +87,7 @@ class Redis
         }
         $name = $this->options['prefix'] . $name;
         //对数组/对象数据进行缓存处理，保证数据完整性  byron sampson<xiaobo.sun@qq.com>
-        $value  =  (is_object($value) || is_array($value)) ? json_encode($value) : $value;
+        $value = (is_object($value) || is_array($value)) ? json_encode($value) : $value;
         if (is_int($expire)) {
             $result = $this->handler->setex($name, $expire, $value);
         } else {

library/think/cache/driver/Sae.php

@@ -18,7 +18,7 @@ use think\Exception;
  * SAE Memcache缓存驱动
  * @author    liu21st <liu21st@gmail.com>
  */
-class Sae
+class Sae implements CacheInterface
 {
     protected $handler = null;
     protected $options = [

library/think/cache/driver/Secache.php

@@ -17,7 +17,7 @@ use think\Cache;
  * Secache缓存驱动
  * @author    liu21st <liu21st@gmail.com>
  */
-class Secache
+class Secache implements CacheInterface
 {
 
     protected $handler = null;

library/think/cache/driver/Sqlite.php

@@ -18,7 +18,7 @@ use think\Exception;
  * Sqlite缓存驱动
  * @author    liu21st <liu21st@gmail.com>
  */
-class Sqlite
+class Sqlite implements CacheInterface
 {
 
     protected $options = [

library/think/cache/driver/Test.php

@@ -17,7 +17,7 @@ use think\Cache;
  * 测试缓存类
  * @author    liu21st <liu21st@gmail.com>
  */
-class Test
+class Test implements CacheInterface
 {
 
     /**

library/think/cache/driver/Wincache.php

@@ -18,7 +18,7 @@ use think\Exception;
  * Wincache缓存驱动
  * @author    liu21st <liu21st@gmail.com>
  */
-class Wincache
+class Wincache implements CacheInterface
 {
 
     protected $options = [

library/think/cache/driver/Xcache.php

@@ -18,7 +18,7 @@ use think\Exception;
  * Xcache缓存驱动
  * @author    liu21st <liu21st@gmail.com>
  */
-class Xcache
+class Xcache implements CacheInterface
 {
 
     protected $options = [