微信公众平台的快递查询功能的开发，原汁原味的原创。by:skiychan www.zzzzy.com
使用方法：
#查快递(或三个首字母ckd)#快递编号#快递单号
如（查询ems单号为1034616494006的快递）：
#ckd#15#1034616494006

常用快递编号：<br />
15ems,56申通,57顺丰,77圆通,
80韵达,87中通,85宅急送,62天天

<?php
/**
 *  微信公众平台基础类 For Fshare
 *  @author:    Skiychan
 *  @created:   2013.11.19
 */
 
class Wechat{
//  public $token = '';
     
/*  public function __construct($token){
        $this->token = $token;
    }   */
     
    //判断是否来自微信服务器
/*  public function valid(){
        $echoStr = $_GET["echostr"];
 
        if($this->checkSignature()){
            echo $echoStr;
            exit;
        }
    }
*/
     
    public function responseMsg(){
            
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
             
        if (!empty($postStr)){
             
            $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
            $fromUsername = $postObj->FromUserName;
            $toUsername = $postObj->ToUserName;
            $keyword = trim($postObj->Content);
            $time = time();
            $textTpl = "<xml>
                        <ToUserName><![CDATA[%s]]></ToUserName>
                        <FromUserName><![CDATA[%s]]></FromUserName>
                        <CreateTime>%s</CreateTime>
                        <MsgType><![CDATA[%s]]></MsgType>
                        <Content><![CDATA[%s]]></Content>
                        <FuncFlag>0</FuncFlag>
                        </xml>";              
            if(!empty($keyword)){
                 
                //当输入文字类型
                if($msgType = "text"){
                    //$contentStr = $keyword.$fromUsername.$time;
                    //$preg = "/^\#([\W\w]*?)\#([\W\w]*?)\#(.*)/";  //0为功能，1为选项，2为余下的值
                    //$preg = "/\#([\w]+)/";    //0为功能，1为选项，2为余下的值
                    $preg = "/\#([\w\d\x{4e00}-\x{9fa5}]+)/u";  //0为功能，1为选项，2为余下的值
                    preg_match_all($preg,$keyword,$newdata);
                    $fn_name = $newdata[1][0];
                     
                    //获取快递的参数
                    if(strtolower($fn_name)=="skiy"){
                        $me = "我是此公众帐号的开发者，英文名Skiy。\n如果你对本功能有任何意见和建议，欢迎联系我，\n我的QQ是1005043848\n微信是forskiy,邮箱：\ndeveloper@zzzzy.com\n网站：www.zzzzy.com";
                        $contentStr = $me;
                    }                   
                         
                    //获取快递的参数
                    if($fn_name=="快递"||strtolower($fn_name)=="kuaidi"){
                         
                        $kdlist = '';
                        //启用PDO连接sqlite的方式
                        $db = new PDO("sqlite:somedata/data.dat");
                        $results = $db->query('SELECT * FROM kuaidi')->fetchAll();
                        foreach ($results as $key=>$row) {
                            //var_dump($row);
                            //$list_one = $row['id']." ".$row['code']." ".$row['company']."\n";
                            $list_one = $row['id'].' '.$row['company']."\n";
                            $kdlist = $kdlist.$list_one;
                        }   
                         
                        //主机支持sqlite3的方式
/*                      $db = new SQLite3("somedata/data.dat");
                        $results = $db->query('SELECT * FROM kuaidi');
                        while ($row = $results->fetchArray()) {
                            //var_dump($row);
                            $list_one = $row['id']." ".$row['code']." ".$row['company']."\n\r";
                            $kdlist = $kdlist.$list_one;
                        }   */     
                         
                        $contentStr = $kdlist;
                    }
                                         
                         
                    if($fn_name=="查快递"||strtolower($fn_name)=="ckd"){
                        $id = $newdata[1][1];
                        $num = $newdata[1][2];
                         
                        $db = new PDO("sqlite:somedata/data.dat");
                        $results = $db->query('SELECT code,company FROM kuaidi WHERE id = '.$id)->fetchAll();
                         
                        $code = $results[0]['code'];        //获取英文代码
                        $com =  $results[0]['company'];     //获取公司名称
                         
                        $numinfo = "快递:".$com."\n"."单号:".$num."\n";
                        $kd_url = "http://m.kuaidi100.com/query?type=".$code."&postid=".$num;
                        $json_getdata = file_get_contents($kd_url);
                        $get_kdinfo = json_decode($json_getdata);   //object
                        $get_kdinfo = json_decode($json_getdata,true);  //array
 
                        $last_t = "查询时间:\n".$get_kdinfo['updatetime']."\n\n";   //查询时间
                             
                        $kd_shipinfo =  $get_kdinfo['data'];    //快递数据数组
                        $kd_total = count($kd_shipinfo)-1;
                        $ship = '';
                         
                        //物流倒序详情
                        for($i = $kd_total;$i>=0;$i--){
                            $shipinfo = $kd_shipinfo[$i]['time']."\n".$kd_shipinfo[$i]['context']."\n";
                            $ship = $shipinfo.$ship;
                        }
                        //顺序物流详情
                        /*foreach ($kd_shipinfo as $v){
                            $shipinfo = $v['time']."\n".$v['context']."\n";
                            $ship = $shipinfo.$ship;
                        }
                        */
                        $get_kdinfo = $numinfo.$last_t."【物流详情】\n".$ship;
                        if($ship){
                            $contentStr = $get_kdinfo;
                        }else{
                            $contentStr = $numinfo.">没有物流数据！";
                        }
                    }
 
                    $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                    echo $resultStr;
                }else{
                    echo "Input something...";
                }
            }
        }else {
            echo "You have no enter something...";
            exit;
        }
    }
     
     
    //判断签名，返回bool
    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;
        }
    }
}

2.index.php

<?php
/**
 * 
 * 微信公众平台消息接口 For Fshare（分享资讯）
 * @author: Skiychan    (Wechat:forskiy)
 * @created:2013.11.19
 * 
 */
 
include_once 'class.base.php';
 
define('TOKEN', 'skiychan');
 
$wx = new Wechat();
 
//$wx->valid();
$wx->responseMsg();