如何部署自己的公众平台： 
    1.打开http://mp.weixin.qq.com 注册/登录 
    2.进入高级功能菜单，选择编辑模式或开发者模式(本例子属于开发者模式-需要自己拥有服务器) 
    3.进入开发者模式，注册成为开发者，配置接口信息。如： 
        url：http://192.168.1.1/wx_sample.php 
        token：weixin (自己填写一个) 
    4.打开wx_sample.php    $wechatobj->valid(); 这个方法进行验证 
    5.验证成功，关闭wx_sample.php    $wechatobj->valid(); 
    6.马上使用手机，访问属于自己的公众平台吧 


本例代码测试方法： 
    1.打开手机微信 
    2.关注公众账号：天天av 
    3.发送一条信息：q北京遇上西雅图 
    4.返回一条磁力链接 
    5.系统返回的是迅雷磁力链接，请您使用电脑版迅雷或手机版迅雷，进行下载观看 

原理： 

    1.接收用户数据,如：q北京遇上西雅图 

    2.到bt搜索引擎进行查询数据 

    3.返回一条磁力链接 

    ps:由于没有申请到内测资格，有很多功能都受到限制，如：5秒超时解决不了， 

    无法主动推送，批量推送，模拟登录又不方便等等。。。 

<?php
/**
  * wechat php test
  */
header('Content-Type:text/html;charset=utf8');
date_default_timezone_set('RPC');
 
//define your token
define("TOKEN", "2snH21PBqF7UK");//自定义
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();//第一次验证token时使用
$wechatObj->responseMsg();
 
class wechatCallbackapiTest
{
    private $keyword;
     
    public function valid()
    {
        $echoStr = $_GET["echostr"];
 
        //valid signature , option
        if($this->checkSignature()){
            echo $echoStr;
            exit;
        }
    }
     
    public function responseMsg()
    {
        //get post data, May be due to the different environments
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
 
        //extract post data
        if (!empty($postStr)){
                 
                $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                $fromUsername = $postObj->FromUserName;
                $toUsername = $postObj->ToUserName;
                $this->keyword = trim($postObj->Content);
                $time = time();
                $textTpl = "<xml>
                            <ToUserName><![CDATA[%s]]></ToUserName>
                            <FromUserName><![CDATA[%s]]></FromUserName>
                            <CreateTime>%s</CreateTime>
                            <MsgType><![CDATA[%s]]></MsgType>
                            <Content><![CDATA[%s]]></Content>
                            <FuncFlag>0</FuncFlag>
                            </xml>";             
                if(!empty( $this->keyword ))
                {
                    if($this->keyword == 999){
                        $msgType = "text";
                        $contentStr = '当您搜索：q北京遇上西雅图，系统返回的是迅雷磁力链接，请您使用电脑版迅雷或手机版迅雷，进行下载观看。';//'参数:1, 按下载数查询;参数:2, 按时间查询;参数:5, 按质量查询; 精确查询请添加双引号; 例如: q"北京遇上西雅图"  1';
                        echo $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                        exit;
                    }
                    preg_match('#^q(.*)#', $this->keyword, $str);
                    if($str[1]){
                        $data = $this->getQueryParam($str[1]);
                        $contents = $this->getQueryList($data);
                        $resutl = $this->getQueryResult($contents);
                        $link = str_replace('&','&',urldecode($resutl[1]));//组装磁力链接
                        if($link){
                            $msgType = "text";
                            $contentStr = $link;
                            echo $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                        }
                    }else{
                        $msgType = "text";
                        $contentStr = '请您输入q进行查询,例如: q北京遇上西雅图     更多帮助请输入999';
                        echo $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                    }
                }else{
                    echo "Input something...";
                }
 
        }else {
            echo "";
            exit;
        }
         
    }
         
    private function checkSignature()
    {
        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];    
                 
        $token = TOKEN;
        $tmpArr = array($token, $timestamp, $nonce);
        sort($tmpArr);
        $tmpStr = implode( $tmpArr );
        $tmpStr = sha1( $tmpStr );
         
        if( $tmpStr == $signature ){
            return true;
        }else{
            return false;
        }
    }
     
    //返回q=查询
    function getQueryResult($contents){
        $result = array();
        preg_match('#<a onclick="fclck\(this.href\)" href="(.*)" title="Download via magnet-link">\[magnet-link\]</a>#iUs', $contents, $content);
        $result = $content;
        return $result;
    }
     
     
    //获取btdigg.org 的查询数据
    function getQueryList($data){
        $data['order'] = $data['order'] ? $data['order'] : 0;
        $data['p'] = 0;
        $ch = curl_init();
 
        curl_setopt($ch, CURLOPT_URL, 'https://btdigg.org/search?'.http_build_query($data));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Google Bot');
        curl_setopt($ch, CURLOPT_TIMEOUT, 4);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
         
        $result = curl_exec($ch);
        curl_close($ch);
        return $result;
    }
 
    //获取查询参数
    function getQueryParam($str){
        $data = array();
        $string = explode(' ', $str);
         
        //是数组 and 最后一个数组是数字
        $last = array_pop($string);
        if(is_numeric($last)){
            $data['q'] = implode(' ', $string);
            $data['order'] = $last;
        }else{
            $data['q'] = $str;
        }
        return $data;
    }
     
}
 
?>