添加数据转换类及相关驱动

Library/Think/Transform.php

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+<?php
+// +----------------------------------------------------------------------
+// | TOPThink [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2011 http://topthink.com All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: 麦当苗儿 <zuojiazi.cn@gmail.com> <http://www.zjzit.cn>
+// +----------------------------------------------------------------------
+
+namespace Think;
+
+// 内容解析类
+class Transform {
+
+    static private $handler = [];
+
+    static private init($type){
+    	if(!isset(self::$handler[$type])) {
+            $class = '\\Think\\Transform\\Driver\\' . ucwords($type);
+            self::$handler[$type] = new $class();
+        }
+    }
+
+    // 编码内容
+    static public function encode($content, $type){
+        self::init($type);
+        return self::$handler[$type]->encode($content);
+    }
+
+    // 解码内容
+    static public function decode($content, $type, $assoc = true){
+    	self::init($type);
+    	return self::$handler[$type]->decode($content, $assoc);
+    }
+
+    // 调用驱动类的方法
+    // Transform::xmlEncode('abc')
+    // Transform::jsonDecode('abc', true);
+	static public function __callStatic($method, $params){
+		$type   = substr($method, 0, strlen($method) - 6);
+		$method = substr($method, -6);
+		$assoc  = empty($params[2]) ? true : false;
+        return self::$method($params[0], $type, $assoc);
+	}
+}

Library/Think/Transform/Driver/Json.php

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+<?php
+// +----------------------------------------------------------------------
+// | TOPThink [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2011 http://topthink.com All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: 麦当苗儿 <zuojiazi.cn@gmail.com> <http://www.zjzit.cn>
+// +----------------------------------------------------------------------
+
+namespace Think\Transform\Driver;
+
+class Json{
+	public function encode($data){
+		return json_encode($data);
+	}
+
+	public function decode($data, $assoc = true){
+		return json_decode($data, $assoc);
+	}
+}

Library/Think/Transform/Driver/Xml.php

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+<?php
+// +----------------------------------------------------------------------
+// | TOPThink [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2011 http://topthink.com All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: 麦当苗儿 <zuojiazi.cn@gmail.com> <http://www.zjzit.cn>
+// +----------------------------------------------------------------------
+
+namespace Think\Transform\Driver;
+
+class Xml{
+    /**
+     * XML数据默认配置项
+     * @var array
+     */
+    private $config = [
+        'root_name' => 'think', //根节点名称
+        'root_attr' => [],      //根节点属性
+        'item_name' => 'item',  //数字节点转换的名称
+        'item_key'  => 'id',    //数字节点转换的属性名
+        'encoding'  => 'utf-8', //字符集编码
+    ];
+
+    /**
+     * 编码XML数据
+     * @param  mixed $data   被编码的数据
+     * @param  array $config 数据配置项
+     * @return string        编码后的XML数据
+     */
+    public function encode($data, array $config = []) {
+        //初始化配置
+        $config = array_merge($this->config, $config);
+
+        if(is_array($config['root_attr'] && !empty($config['root_attr']))){
+            $attr = [];
+            foreach ($config['root_attr'] as $key => $value) {
+                $attr[] = "{$key}=\"{$value}\"";
+            }
+            $attr = implode(' ', $attr);
+        }
+        $attr  = empty($attr) ? '' : " {$attr}";
+        $xml   = "<?xml version=\"1.0\" encoding=\"{$config['encoding']}\"?>";
+        $xml  .= "<{$config['root_name']}{$attr}>";
+        $xml  .= self::data2xml($data, $config['item_name'], $config['item_key']);
+        $xml  .= "</{$config['root_name']}>";
+        return $xml;
+    }
+
+    public function decode($data, $assoc = true){
+        
+    }
+
+    
+
+    /**
+     * 数据XML编码
+     * @static
+     * @access public
+     * @param  mixed  $data 数据
+     * @param  string $item 数字索引时的节点名称
+     * @param  string $id   数字索引key转换为的属性名
+     * @return string
+     */
+    static public function data2xml($data, $item = 'item', $id = 'id') {
+        $xml = $attr = '';
+        foreach ($data as $key => $val) {
+            if(is_numeric($key)){
+                $id && $attr = " {$id}=\"{$key}\"";
+                $key = $item;
+            }
+            $xml .= "<{$key}{$attr}>";
+            $xml .= (is_array($val) || is_object($val)) ? self::data2xml($val, $item, $id) : $val;
+            $xml .= "</{$key}>";
+        }
+        return $xml;
+    }
+}