php从苹果apns的feedback服务器获取推送失败的token

<?php /**
 * @desc 连接苹果的推送服务器
 * @return bool|resource
 */
function connect_feedback(){
   $passphrase = 'cheshi123';
   $cert_file = 'cheshi_productionck.pem';//推送的证书地址，环境不要错了
   $feedback_server = 'ssl://feedback.push.apple.com:2196';//feedback服务器地址
   //沙盒环境地址是 ssl://feedback.sandbox.push.apple.com:2196
   $ctx = stream_context_create();
   stream_context_set_option($ctx, 'ssl', 'local_cert', $cert_file);
   stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase);
   $fp = stream_socket_client($feedback_server, $error, $errorString, 60, STREAM_CLIENT_CONNECT, $ctx);
   if(!$fp){
      print "Failed to connect feedback server: $error $errorString\n";
      return false;
   }else{
      print "Connection to feedback server OK\n";
   }
   return $fp;
}
/**
 * @desc 连接本地的redis,用来存储获取到的token,也可以用其他方式存储
 * @param $redis_server
 *
 * @return bool|Redis
 */
function connect_redis($redis_server){
   $param = parse_url($redis_server);
   $redis = new Redis();
   if($redis->connect($param['host'],$param['port'])){
      print "connect redis OK";
   }else{
      print "failed to connect redis server";
      return false;
   }
   return $redis;
}
/**
 * @desc 执行推送操作的主要代码
 */
function feedback(){
   $count1 = 0;
   $run_times = 0;
   $redis_server = "tcp://localhost:6379";
   $iostokenremoved= 'iostokenremoved';
   $iostokenremoved_num = 'iostokenremoved_num';
   $fp = connect_feedback();
   $redis = connect_redis($redis_server);
   //苹果建议provider和feedback服务维持一个长连接，如果频繁的建立连接可能会被当做攻击处理
   $devcon ='';
   while($run_timesping()==='+PONG'){
         print date('Ymd His').'|redis server disconnected';
         @$redis->close();
         unset($redis);
         $redis = connect_redis($redis_server);
      }
      //每次读取38个字段，这是保存的一个完整token 信息的长度
      while ($devcon = fread($fp, 38)){
         $count1 ++ ;
         $arr = unpack("H*", $devcon);//解包传过来的二进制数据
         $rawhex = trim(implode("", $arr));
         $feedbackTime = hexdec(substr($rawhex, 0, 8));
         $feedbackDate = date('Y-m-d H:i:s', $feedbackTime);
         $feedbackDeviceToken = substr($rawhex, 12, 64);
         //记录被删除的token
         $redis->hSet($iostokenremoved,$feedbackDeviceToken,$feedbackDate);
         //记录每天的卸载数量
         $redis->hIncrBy($iostokenremoved_num,date('Y-m-d',$feedbackTime),1);
      }
      echo 'FeedBack:'. $count1 . PHP_EOL;
      usleep(10000000);//sleep 10秒
   }
   $redis->close();
   fclose($fp);
}
//可以通过命令行来执行这个脚本 php -f feedback.php feedback
if(isset($argc[1]) && function_exists($argv[1])){
   $argv[1]();
}else{
   die('invalid input');
}