How to send mass messages on WeChat? PHP WeChat advanced interface mass message multi-customer service

/**

 * 微信接口调用

 * 依赖

 * 全局变量

 * global $uid 公众号用户id, $wid 公众号id, $wechatid 粉丝唯一id;

 * 参数

 * $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

 * $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);

 * 缓存类 自定义

 * Cache:set

 * Cache:get

 * 具体业务修改

 * 1.上传图文信息至微信素材库

 * function uploadArticlesToWeiXinServer()

 * 2.关键字匹配图文回复

 * function getArticleData()

 *

 * usage:

 *  $options = array(

 *  'token'=>'tokenaccesskey', //填写你设定的key

 *  'appid'=>'wxdk1234567890', //填写高级调用功能的app id

 *  'appsecret'=>'xxxxxxxxxxxxxxxxxxx', //填写高级调用功能的密钥

 *  );

 */

class WeiXinTool {

  private $appid;

  private $appsecret;

  private $access_token;

  private $mediaType = array('image' => array("jpg"), 'voice' => array('amr', 'MP3'), 'video' => array('mp4'), 'thumb' => array("jpg"));

  private $mediaMaxSize = array('image' => 131072, 'voice' => 262144, 'video' => 1048576, 'thumb' => 65536);

  private $tem_file_path = "";

//  授权地址

  const AUTH_URL = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s';

//  素材上传

  const UPLOAD_MEDIA_URL = "http://file.api.weixin.qq.com/cgi-bin/media/upload?access_token=%s&type=%s";

  const GET_MEDIA_URL = "http://file.api.weixin.qq.com/cgi-bin/media/get?access_token=%s&media_id=%s";

  const UPLOAD_NEWS_URL = "https://api.weixin.qq.com/cgi-bin/media/uploadnews?access_token=%s";

  public function __construct($options) {

    $this->appid = isset($options['appid']) ? $options['appid'] : '';

    $this->appsecret = isset($options['appsecret']) ? $options['appsecret'] : '';

    //需修改

    //上传图片临时文件目录自定义

    $this->tem_file_path = YYUC_FRAME_PATH . YYUC_PUB . '/' . Session::get('upath');

  }

  /**

   * 需修改

   * 具体业务需求，图文信息上传至素材库

   * 微站文章上传至微信素材

   * @param type $wid

   * @param type $aid

   * @return int

   */

  public function uploadArticlesToWeiXinServer($wid, $aid) {

    //具体图文组装过程，需修改

    $m = new Model('website_article');

    $m_pubs = new Model('pubs');

    $m_pubs->find(array("id" => $wid));

    $m->find(array("wid" => $wid, 'id' => $aid));

    $res = array();

    if ($m->has_id() && $m_pubs->has_id()) {

      $res[] = $m->get_model_array();

//      var_dump($res);

      $m->votetouser = json_decode($m->votetouser, TRUE);

      $articles = $m->votetouser[0];

      $m_article = new Model('website_article');

      $ress = $m_article->where(array('wid' => $wid, 'id' => $articles))->list_all_array();

      $res = array_merge($res, $ress);

    } else {

      $errarr = array();

      $errarr['errcode'] = 44003;

      $errarr['errmsg'] = self::$errorno[$errarr['errcode']];

      return $errarr;

    }

    $items = array();

    foreach ($res as $k => $v) {

      $mediaid = $this->uploadMedia($v['picurl']);

      if ($mediaid['media_id']) {

        $thumb_media_id = $mediaid['media_id'];

      } else {

        return $mediaid;

      }

      $item = array(

        "thumb_media_id" => $thumb_media_id,

        "author" => $m_pubs->pubun,

        "title" => $v['title'],

        "content_source_url" => WeiXinTool::complateUrl(WeiSite::parseArticleLinkData($v)),

        "content" => $v['reply_content'], //内容 富文本

        "digest" => $v['description']//描述

      );

      $items[] = $item;

    }

    //以上具体图文组装过程，需修改

    $postData['articles'] = $items;

    $error = $this->uploadNews($postData);

    return $error;

  }

  /**

   * 需修改

   * 微站文章关键字匹配数据解析

   */

  public static function getArticleData($keyword) {

    global $wid;

    $m = new Model('website_article');

    $m->find(array('wid' => $wid, 'keyword@~' => " " . $keyword . " "));

    $res = array();

    if ($m->has_id()) {

      $res[] = array("tit" => $m->title, "pic" => $m->picurl, "dec" => $m->description, "url" => WeiSite::parseArticleLinkData($m->get_model_array()));

      $m->votetouser = json_decode($m->votetouser, TRUE);

      $articles = $m->votetouser[0];

      if (!empty($articles)) {

        foreach ($articles as $v) {

          $m_article = new Model('website_article');

          $m_article->find(array('wid' => $wid, 'id' => $v));

          $res[] = array("tit" => $m_article->title, "pic" => $m_article->picurl, "dec" => $m_article->description, "url" => WeiSite::parseArticleLinkData($m_article->get_model_array()));

        }

      }

      return $res;

    }

  }

  /**

   * 获取accesstoken

   * @param type $flag 强制刷新accesstoken 开关

   * @return type

   */

  public function getAccessToken($flag = FALSE) {

    $url = sprintf(self::AUTH_URL, $this->appid, $this->appsecret);

    $result = Cache::get(md5($url));

    if ($flag || empty($result)) {

      $result = $this->http_get($url);

      $result = json_decode($result, TRUE);

      if ($result['errcode']) {

        return $result['errcode'];

      }

      Cache::set(md5($url), $result, 1);

    }

    $this->access_token = $result['access_token'];

    return true;

  }

  /**

   * 上传媒体

   * @param type $file 媒体文件 $url或者物理路径地址

   * @param type $type 类型

   * @return int

   * return

   array (size=3)

   'type' => string 'image' (length=5)

   'media_id' => string '-0Lr3rX9mDYBB7i5bDydvwFHHm3zW2Uxt0OoDFBPmGRfYiwckiALqHH_DlP9jCm_' (length=64)

   'created_at' => int 1400477181

   */

  public function uploadMedia($file, $type = "image") {

    $file = self::complateUrl($file);

    $urlarr = parse_url($file);

    $filetype = explode(".", $urlarr['path']);

    $filetype = strtolower($filetype[count($filetype) - 1]);

    $resizeSize = 100; //图片处理后另存质量

    if (!key_exists($type, $this->mediaType) || !in_array($filetype, $this->mediaType[$type])) {

//      return 40005; //格式错误

      $errarr = array();

      $errarr['errcode'] = 40005;

      $errarr['errmsg'] = self::$errorno[$errarr['errcode']];

      return $errarr;

    }

    $temp_file = $this->tem_file_path . 'uploadMedia.' . $filetype;

    $temp_file_resize = $this->tem_file_path . 'uploadMediaResize.' . $filetype;

    file_put_contents($temp_file, self::http_get($file));

    $handle = fopen($temp_file, "r");

    $fstat = fstat($handle);

    if ($fstat['size'] > $this->mediaMaxSize[$type]) {

      $resizeSize = intval($this->mediaMaxSize[$type] / $fstat['size'] * 100);

      ImageTool::resizeImage($temp_file_resize, $temp_file, 400, 400, $resizeSize); //图片太大再处理压缩

      $temp_file = $temp_file_resize;

//      return 40006; //大小错误

    }

    $filePath = realpath($temp_file);

    $uploadUrl = sprintf(self::UPLOAD_MEDIA_URL, $this->access_token, $type);

    $postData = array("r" => time(), 'media' => "@{$filePath}");

    $result = self::http_post($uploadUrl, $postData);

    $result = json_decode($result, TRUE);

    return $result;

  }

  /**

   * 群发图文信息

   * @param type $touser 粉丝数组/粉丝组id

   * @param type $media_id

   * @return type

   */

  public function sendArticles($touser, $media_id) {

    $errarr = array();

    $postData = array();

    $postData['mpnews'] = array("media_id" => $media_id);

    $postData['msgtype'] = "mpnews";

    if (is_array($touser)) {

      //用户列表群发

      $postData['touser'] = $touser;

      $url = 'https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token=%s';

    } else {

      $group = intval($touser);

      $groups = $this->getGroups(true);

      if (key_exists($group, $groups['list'])) {

        $postData['filter'] = array("group_id" => $group);

      } else {

        $errarr['errcode'] = 40050; //无效分组id

        $errarr['errmsg'] = self::$errorno[$errarr['errcode']];

        return $errarr;

      }

      $url = 'https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token=%s';

    }

    $url = sprintf($url, $this->access_token);

    $result = self::http_post($url, self::json_encode($postData));

    $result = json_decode($result, TRUE);

    return $result;

  }

  /**

   * 删除群发信息

   * @param type $msgid

   * @return type

   */

  public function delSend($msgid) {

    $url = 'https://api.weixin.qq.com/cgi-bin/message/mass/delete?access_token=%s';

    $url = sprintf($url, $this->access_token);

    $postData = array('msgid' => $msgid, 'r' => time());

    $result = self::http_post($url, self::json_encode($postData));

    $result = json_decode($result, TRUE);

    return $result;

  }

  /**

   * 群发图文素材上传

   $postData = array('articles' => array($item, $item,...));

   $item = array(

   "thumb_media_id" => "WMQubqCECMQwAjqh8CI500LfhyoG0vmTTlKKJM5oP-of0uLML1_2s26j8XeIorDL",

   "author" => "xxx",

   "title" => "Happy Day",

   "content_source_url" => "www.qq.com",

   "content" => "content",

   "digest" => "digest"

   );

   * return

   array (size=3)

   'type' => string 'news' (length=4)

   'media_id' => string 'OuXqv2dgZzxAmK4z-tvStgr6InG18oIllWkD6Tj1qJZVRg-2f64FDU2D3J7dptHs' (length=64)

   'created_at' => int 1400477183

   */

  public function uploadNews($postData) {

    $uploadUrl = sprintf(self::UPLOAD_NEWS_URL, $this->access_token);

    $result = self::http_post($uploadUrl, self::json_encode($postData));

    $result = json_decode($result, TRUE);

    return $result;

  }

  /**

   * 获取粉丝列表

   * @param type $nextOpenId

   * @return type

   */

  public function getAllConnects($nextOpenId = "") {

    $url = 'https://api.weixin.qq.com/cgi-bin/user/get?access_token=%s&next_openid=%s';

    $url = sprintf($url, $this->access_token, $nextOpenId);

    $result = self::http_get($url);

    $result = json_decode($result, TRUE);

    $count = count($result['data']['openid']);

    $list = $result['data']['openid'];

    if ($result['data']['openid'][$count - 1] == $result['next_openid']) {

      return $result['data']['openid'];

    } else {

      $templist = $this->getAllConnects($result['next_openid']);

      $list = array_merge($list, $templist);

      return $list;

    }

  }

  /**

   * 根据粉丝唯一id获取微信信息

   * @param type $openid

   * @return type

   */

  public function getFansInfo($openid) {

    $url = 'https://api.weixin.qq.com/cgi-bin/user/info?access_token=%s&openid=%s&lang=zh_CN';

    $url = sprintf($url, $this->access_token, $openid);

    $result = self::http_get($url);

    $result = json_decode($result, TRUE);

    return $result;

  }

  /**

   * 更新粉丝组信息

   * @param type $openid

   * @param type $groupid

   * @return type

   */

  public function updateFansGroups($openid, $groupid) {

    $url = 'https://api.weixin.qq.com/cgi-bin/groups/members/update?access_token=%s';

    $url = sprintf($url, $this->access_token);

    $postData = array("to_groupid" => $groupid, 'openid' => $openid);

    $result = self::http_post($url, self::json_encode($postData));

    $result = json_decode($result, TRUE);

    $this->getGroups(true);

    return $result;

  }

  /**

   * 获取粉丝组信息

   * @param type $openid

   * @return type

   */

  public function getFansGroupInfo($openid) {

    $url = 'https://api.weixin.qq.com/cgi-bin/groups/getid?access_token=%s';

    $url = sprintf($url, $this->access_token);

    $postData = array("r" => time(), 'openid' => $openid);

    $result = self::http_post($url, self::json_encode($postData));

    $result = json_decode($result, TRUE);

    return $result['groupid'];

  }

  /**

   * 获取唯一key

   * @param type $key

   * @return type

   */

  public function getKey($key) {

    return md5($this->appid . $this->appsecret . $key);

  }

  /**

   * 获取媒体图片到本地

   * @param type $mediaid

   * @return string

   */

  public function getMedia($mediaid) {

    $url = sprintf(self::GET_MEDIA_URL, $this->access_token, $mediaid);

    $result = self::http_get($url);

    $temp_file = $this->tem_file_path . 'getMedia.jpg';

    file_put_contents($temp_file, $result);

    return $temp_file;

  }

  /**

   * 用户组

   * @param type $flag 强制刷新用户组

   * @return type

   */

  public function getGroups($flag = false) {

    $key = $this->appid . 'gasdfev' . $this->appsecret;

    $result = Cache::get($key);

    if (empty($result) || $flag) {

      $url = 'https://api.weixin.qq.com/cgi-bin/groups/get?access_token=%s';

      $url = sprintf($url, $this->access_token);

      $result = self::http_get($url);

      $result = json_decode($result, TRUE);

      $temg = array();

      $temlist = array();

      foreach ($result['groups'] as $k => $v) {

        $temg[$v['id']] = $v;

        $temlist[$v['id']] = $v['name'];

      }

      $result['map'] = $temg;

      $result['list'] = $temlist;

      Cache::set($key, $result);

    }

    return $result;

  }

  /**

   * 新增用户组

   * @param type $name

   * @return type

   */

  public function createGroup($name) {

    $url = 'https://api.weixin.qq.com/cgi-bin/groups/create?access_token=%s';

    $url = sprintf($url, $this->access_token);

    $result = self::http_post($url, self::json_encode(array('group' => array('name' => $name))));

    $result = json_decode($result, TRUE);

    return $result;

  }

  /**

   * 修改用户组

   * @param type $id

   * @param type $name

   * @return type

   */

  public function modifyGroup($id, $name) {

    $url = 'https://api.weixin.qq.com/cgi-bin/groups/update?access_token=%s';

    $url = sprintf($url, $this->access_token);

    $result = self::http_post($url, self::json_encode(array('group' => array('id' => $id, 'name' => $name))));

    $result = json_decode($result, TRUE);

    return $result;

  }

  /**

   * 多客服接入

   * @global type $wid

   * @param type $postObj

   */

  public static function responseService($postObj) {

    global $wid;

    $fromUsername = $postObj->FromUserName;

    $toUsername = $postObj->ToUserName;

    $textTpl = "<xml>

<ToUserName><![CDATA[%s]]></ToUserName>

<FromUserName><![CDATA[%s]]></FromUserName>

<CreateTime>%s</CreateTime>

<MsgType><![CDATA[transfer_customer_service]]></MsgType>

</xml>";

    $resstr = sprintf($textTpl, $fromUsername, $toUsername, time());

    echo $resstr;

  }

  /**

   * 微信回复多图文

   * @global type $wid

   * @param type $res

   * array(array(),array()

   * );

   * @param type $rid

   * @param type $postObj

   */

  public static function response_morearts($res, $postObj) {

    global $wid;

    $fromUsername = $postObj->FromUserName;

    $toUsername = $postObj->ToUserName;

    $textTpl = "<xml>

 <ToUserName><![CDATA[%s]]></ToUserName>

 <FromUserName><![CDATA[%s]]></FromUserName>

 <CreateTime>%s</CreateTime>

 <MsgType><![CDATA[%s]]></MsgType>

 <ArticleCount>%s</ArticleCount>

 <Articles>

 ITEM

 </Articles>

 </xml>";

    $resstr = sprintf($textTpl, $fromUsername, $toUsername, time(), "news", count($res));

    $item = '';

    $subitem = "<item>

 <Title><![CDATA[%s]]></Title>

 <Description><![CDATA[%s]]></Description>

 <PicUrl><![CDATA[%s]]></PicUrl>

 <Url><![CDATA[%s]]></Url>

 </item>";

    foreach ($res as $r) {

      $r['url'] = self::parseUrl($r['url']);

      $item .= sprintf($subitem, $r['tit'], $r['des'], self::complateUrl($r['pic']), self::replaceToWXUrl(self::complateUrl($r['url']), $postObj));

    }

    $resstr = str_replace('ITEM', $item, $resstr);

    echo $resstr;

  }

  /**

   * url解析

   * @param type $url

   * @return string

   */

  public static function complateUrl($url) {

    if (false === stristr($url, "http://")) {//查找http:// 如果不存在

      if (0 === strpos($url, '/')) {//查找首字母 如果存在

        $url = substr($url, 1); //去除/

      }

      $url = "http://" . $_SERVER['HTTP_HOST'] . '/' . $url; //拼接完整路径

    }

    return $url;

  }

  /**

   * 微信url固定参数替换

   * @param type $url

   * @param type $postObj

   * @return type

   */

  public static function replaceToWXUrl($url, $postObj) {

    global $wechatid;

    return str_ireplace('fromUsername', $wechatid, $url);

  }

  /**

   * 完成以下行为

   * parseUrlParam

   * setUrlPublicParam

   * buildUrlParam

   * @param type $url

   * @param type $other 附加参数 基础参数wid wxid wechatid

   */

  public static function parseUrl($url, $other = array()) {

    $url = self::parseUrlParam($url);

    $url = self::setUrlPublicParam($url);

    if (is_array($other) && !empty($other)) {

      $url['param'] = array_merge($url['param'], $other);

    }

    $url = self::buildUrlParam($url);

    return $url;

  }

  /**

   * 分析url

   * @param type $url

   * @return type

   */

  public static function parseUrlParam($url) {

    $temp = explode("?", $url);

    $url0 = $temp[0];

    $url1 = $temp[1];

    $p = explode("&", $url1);

    $param = array();

    foreach ($p as $v) {

      $tempp = explode("=", $v);

      $param[$tempp[0]] = $tempp[1];

    }

    return array("url" => $url0, "param" => $param);

  }

  /**

   * 组装url

   * @param type $arr

   * @return type

   */

  public static function buildUrlParam($arr) {

    $url = $arr['url'];

    $param = $arr['param'];

    $param_arr = array();

    foreach ($param as $k => $v) {

      if ($k == "") continue;

      $param_arr[] = $k . "=" . $v;

    }

    return $url . "?" . implode("&", $param_arr) . "#mp.weixin.qq.com";

  }

  /**

   * 设置微信保留参数信息

   * @global type $uid

   * @global type $wid

   * @global type $wechatid

   * @param type $url

   * @return type

   */

  public static function setUrlPublicParam($url) {

    global $uid, $wid, $wechatid;

    $url['param']['wid'] = $wid;

    $url['param']['wxid'] = $wechatid;

    $url['param']['wechatid'] = $wechatid;

    return $url;

  }

  public static $errorno = array(

    '-1' => '系统繁忙',

    '0' => '请求成功',

    '40001' => '获取access_token时AppSecret错误，或者access_token无效',

    '40002' => '不合法的凭证类型',

    '40003' => '不合法的OpenID',

    '40004' => '不合法的媒体文件类型',

    '40005' => '不合法的文件类型',

    '40006' => '不合法的文件大小',

    '40007' => '不合法的媒体文件id',

    '40008' => '不合法的消息类型',

    '40009' => '不合法的图片文件大小',

    '40010' => '不合法的语音文件大小',

    '40011' => '不合法的视频文件大小',

    '40012' => '不合法的缩略图文件大小',

    '40013' => '不合法的APPID',

    '40014' => '不合法的access_token',

    '40015' => '不合法的菜单类型',

    '40016' => '不合法的按钮个数',

    '40017' => '不合法的按钮个数',

    '40018' => '不合法的按钮名字长度',

    '40019' => '不合法的按钮KEY长度',

    '40020' => '不合法的按钮URL长度',

    '40021' => '不合法的菜单版本号',

    '40022' => '不合法的子菜单级数',

    '40023' => '不合法的子菜单按钮个数',

    '40024' => '不合法的子菜单按钮类型',

    '40025' => '不合法的子菜单按钮名字长度',

    '40026' => '不合法的子菜单按钮KEY长度',

    '40027' => '不合法的子菜单按钮URL长度',

    '40028' => '不合法的自定义菜单使用用户',

    '40029' => '不合法的oauth_code',

    '40030' => '不合法的refresh_token',

    '40031' => '不合法的openid列表',

    '40032' => '不合法的openid列表长度',

    '40033' => '不合法的请求字符，不能包含\uxxxx格式的字符',

    '40035' => '不合法的参数',

    '40038' => '不合法的请求格式',

    '40039' => '不合法的URL长度',

    '40050' => '不合法的分组id',

    '40051' => '分组名字不合法',

    '40059' => '不合法的消息id',

    '41001' => '缺少access_token参数',

    '41002' => '缺少appid参数',

    '41003' => '缺少refresh_token参数',

    '41004' => '缺少secret参数',

    '41005' => '缺少多媒体文件数据',

    '41006' => '缺少media_id参数',

    '41007' => '缺少子菜单数据',

    '41008' => '缺少oauth code',

    '41009' => '缺少openid',

    '42001' => 'access_token超时',

    '42002' => 'refresh_token超时',

    '42003' => 'oauth_code超时',

    '43001' => '需要GET请求',

    '43002' => '需要POST请求',

    '43003' => '需要HTTPS请求',

    '43004' => '需要接收者关注',

    '43005' => '需要好友关系',

    '44001' => '多媒体文件为空',

    '44002' => 'POST的数据包为空',

    '44003' => '图文消息内容为空',

    '44004' => '文本消息内容为空',

    '45001' => '多媒体文件大小超过限制',

    '45002' => '消息内容超过限制',

    '45003' => '标题字段超过限制',

    '45004' => '描述字段超过限制',

    '45005' => '链接字段超过限制',

    '45006' => '图片链接字段超过限制',

    '45007' => '语音播放时间超过限制',

    '45008' => '图文消息超过限制',

    '45009' => '接口调用超过限制',

    '45010' => '创建菜单个数超过限制',

    '45015' => '回复时间超过限制',

    '45016' => '系统分组，不允许修改',

    '45017' => '分组名字过长',

    '45018' => '分组数量超过上限',

    '46001' => '不存在媒体数据',

    '46002' => '不存在的菜单版本',

    '46003' => '不存在的菜单数据',

    '46004' => '不存在的用户',

    '47001' => '解析JSON/XML内容错误',

    '48001' => 'api功能未授权',

    '50001' => '用户未授权该api'

  );

  /**

   * GET 请求

   * @param string $url

   */

  public static function http_get($url) {

    if (!function_exists('curl_init')) {

      die('curl 未开启');

    };

    $oCurl = curl_init();

    if (stripos($url, "https://") !== FALSE) {

      curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);

      curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);

    }

    curl_setopt($oCurl, CURLOPT_URL, $url);

    curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1);

    $sContent = curl_exec($oCurl);

    $aStatus = curl_getinfo($oCurl);

    curl_close($oCurl);

    if (intval($aStatus["http_code"]) == 200) {

      return $sContent;

    } else {

      return false;

    }

  }

  /**

   * POST 请求

   * @param string $url

   * @param array $param

   * @return string content

   */

  public static function http_post($url, $param, $httpBuildQuery = false) {

    if (!function_exists('curl_init')) {

      die('curl 未开启');

    };

    $oCurl = curl_init();

    if (stripos($url, "https://") !== FALSE) {

      curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);

      curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, false);

    }

    curl_setopt($oCurl, CURLOPT_URL, $url);

    curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1);

//    curl_setopt($oCurl, CURLOPT_HTTPHEADER, $header);//设置HTTP头

    curl_setopt($oCurl, CURLOPT_POST, 1);

    if ($httpBuildQuery) {

      $param = http_build_query($param);

    }

    curl_setopt($oCurl, CURLOPT_POSTFIELDS, $param);

    $sContent = curl_exec($oCurl);

    $aStatus = curl_getinfo($oCurl);

    curl_close($oCurl);

    if (intval($aStatus["http_code"]) == 200) {

      return $sContent;

    } else {

      return false;

    }

  }

  /**

   * 微信api不支持中文转义的json结构

   * @param array $arr

   */

  static function json_encode($arr) {

    $parts = array();

    $is_list = false;

    //Find out if the given array is a numerical array

    $keys = array_keys($arr);

    $max_length = count($arr) - 1;

    if (($keys [0] === 0) && ($keys [$max_length] === $max_length )) { //See if the first key is 0 and last key is length - 1

      $is_list = true;

      for ($i = 0; $i < count($keys); $i ++) { //See if each key correspondes to its position

        if ($i != $keys [$i]) { //A key fails at position check.

          $is_list = false; //It is an associative array.

          break;

        }

      }

    }

    foreach ($arr as $key => $value) {

      if (is_array($value)) { //Custom handling for arrays

        if ($is_list) $parts [] = self::json_encode($value); /* :RECURSION: */

        else $parts [] = '"' . $key . '":' . self::json_encode($value); /* :RECURSION: */

      } else {

        $str = '';

        if (!$is_list) $str = '"' . $key . '":';

        //Custom handling for multiple data types

        if (is_numeric($value) && $value < 2000000000) $str .= $value; //Numbers

        elseif ($value === false) $str .= 'false'; //The booleans

        elseif ($value === true) $str .= 'true';

        else $str .= '"' . addslashes($value) . '"';

//All other things

// :TODO: Is there any more datatype we should be in the lookout for? (Object?)

        $parts [] = $str;

      }

    }

    $json = implode(',', $parts);

    if ($is_list) return '[' . $json . ']'; //Return numerical JSON

    return '{' . $json . '}'; //Return associative JSON

  }

}