php实现微信公众号主动推送消息

  //登录  private function login(){    $url = 'https://mp.weixin.qq.com/cgi-bin/login?lang=zh_CN';    $this->send_data = array(      'username' => $this->_account,      'pwd' => md5($this->_password),      'f' => 'json'    );    $this->referer = "https://mp.weixin.qq.com/";    $this->getHeader = 1;    $result = explode("/n",$this->curlPost($url));    foreach ($result as $key => $value) {      $value = trim($value);      if(preg_match('/"ErrCode": (.*)/i', $value,$match)){//获取token        switch ($match[1]) {          case -1:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"系统错误")));          case -2:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"帐号或密码错误")));          case -3:            die(urldecode(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>urlencode("密码错误")))));          case -4:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"不存在该帐户")));          case -5:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"访问受限")));          case -6:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"需要输入验证码")));          case -7:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"此帐号已绑定私人微信号，不可用于公众平台登录")));          case -8:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"邮箱已存在")));          case -32:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"验证码输入错误")));          case -200:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"因频繁提交虚假资料，该帐号被拒绝登录")));          case -94:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"请使用邮箱登陆")));          case 10:            die(json_encode(array('status'=>1,'errCode'=>$match[1],'msg'=>"该公众会议号已经过期，无法再登录使用")));          case 0:            $this->userFakeid = $this->getUserFakeid();            break;        }      }      if(preg_match('/^set-cookie:[/s]+([^=]+)=([^;]+)/i', $value,$match)){//获取cookie        $this->cookie .=$match[1].'='.$match[2].'; ';      }      if(preg_match('/"ErrMsg"/i', $value,$match)){//获取token        $this->token = rtrim(substr($value,strrpos($value,'=')+1),'",');      }    }  }

  //单发消息  private function send($fakeid,$content){    $url = 'https://mp.weixin.qq.com/cgi-bin/singlesend?t=ajax-response&lang=zh_CN';    $this->send_data = array(        'type' => 1,        'content' => $content,        'error' => 'false',        'tofakeid' => $fakeid,        'token' => $this->token,        'ajax' => 1,      );    $this->referer = 'https://mp.weixin.qq.com/cgi-bin/singlemsgpage?token='.$this->token.'&fromfakeid='.$fakeid.'&msgid=&source=&count=20&t=wxm-singlechat&lang=zh_CN';    return $this->curlPost($url);  }

  //群发消息  public function sendMessage($content='',$userId='') {    if(is_array($userId) && !empty($userId)){      foreach($userId as $v){        $json = json_decode($this->send($v,$content));        if($json->ret!=0){          $errUser[] = $v;        }      }    }else{      foreach($this->userFakeid as $v){        $json = json_decode($this->send($v['fakeid'],$content));        if($json->ret!=0){          $errUser[] = $v['fakeid'];        }      }    }        //共发送用户数    $count = count($this->userFakeid);    //发送失败用户数    $errCount = count($errUser);    //发送成功用户数    $succeCount = $count-$errCount;        $data = array(      'status'=>0,      'count'=>$count,      'succeCount'=>$succeCount,      'errCount'=>$errCount,      'errUser'=>$errUser     );        return json_encode($data);  }

  //获取所有用户信息  public function getAllUserInfo(){    foreach($this->userFakeid as $v){      $info[] = $this->getUserInfo($v['groupid'],$v['fakeid']);    }        return $info;  }        //获取用户信息  public function getUserInfo($groupId,$fakeId){    $url = "https://mp.weixin.qq.com/cgi-bin/getcontactinfo?t=ajax-getcontactinfo&lang=zh_CN&fakeid={$fakeId}";    $this->getHeader = 0;    $this->referer = 'https://mp.weixin.qq.com/cgi-bin/contactmanagepage?token='.$this->token.'&t=wxm-friend&lang=zh_CN&pagesize='.$this->pageSize.'&pageidx=0&type=0&groupid='.$groupId;    $this->send_data = array(      'token'=>$this->token,      'ajax'=>1    );    $message_opt = $this->curlPost($url);    return $message_opt;  }    //获取所有用户fakeid  private function getUserFakeid(){    ini_set('max_execution_time',600);    $pageSize = 1000000;    $this->referer = "https://mp.weixin.qq.com/cgi-bin/home?t=home/index&lang=zh_CN&token={$_SESSION['token']}";    $url = "https://mp.weixin.qq.com/cgi-bin/contactmanage?t=user/index&pagesize={$pageSize}&pageidx=0&type=0&groupid=0&token={$this->token}&lang=zh_CN";    $user = $this->vget($url);    $preg = "//"id/":(/d+),/"name/"/";    preg_match_all($preg,$user,$b);    $i = 0;    foreach($b[1] as $v){      $url = 'https://mp.weixin.qq.com/cgi-bin/contactmanage?t=user/index&pagesize='.$pageSize.'&pageidx=0&type=0&groupid='.$v.'&token='.$this->token.'&lang=zh_CN';      $user = $this->vget($url);      $preg = "//"id/":(/d+),/"nick_name/"/";      preg_match_all($preg,$user,$a);      foreach($a[1] as $vv){        $arr[$i]['fakeid'] = $vv;        $arr[$i]['groupid'] = $v;        $i++;      }    }    return $arr;  }