php实现的一个简单json rpc框架实例(2)

/**
     * @param $method
     * @param $params
     * @return bool
     * @throws Exception
     */
    public function __call($method,$params) {
        // 检验request信息
        if (!is_scalar($method)) {
            throw new Exception('Method name has no scalar value');
        }
        if (is_array($params)) {
            $params = array_values($params);
        } else {
            throw new Exception('Params must be given as array');
        }

if ($this->notification) {
            $currentId = NULL;
        } else {
            $currentId = $this->id;
        }

// 拼装成一个request请求
        $request = array(  'method' => $method,  'params' => $params,'id' => $currentId);
        $request = json_encode($request);
        $this->debug && $this->debug.='***** Request *****'."\n".$request."\n".'***** End Of request *****'."\n\n";
        $opts = array ('http' => array (
                                    'method'  => 'POST',
                                    'header'  => 'Content-type: application/json',
                                    'content' => $request
        ));
        //  关键几部
        $context  = stream_context_create($opts);
  if ( $result = file_get_contents($this->url, false, $context)) {
            $response = json_decode($result,true);
  } else {
   throw new Exception('Unable to connect to '.$this->url);
  }
        // 输出调试信息
        if ($this->debug) {
            echo nl2br(($this->debug));
        }
        // 检验response信息
        if (!$this->notification) {
            // check
            if ($response['id'] != $currentId) {
                throw new Exception('Incorrect response id (request id: '.$currentId.', response id: '.$response['id'].')');
            }
            if (!is_null($response['error'])) {
                throw new Exception('Request error: '.$response['error']);
            }
            return $response['result'];

} else {
            return true;
        }
    }
}
?>

(三) 应用实例
（1）服务端 server.php

复制代码 代码如下:

<?php
require_once 'jsonRPCServer.php';

复制代码 代码如下: