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PHP counts online users

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Release： 2016-07-25 08:42:17
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  1. /**
  2. * Created by PhpStorm.
  3. * User: jifei
  4. * Date: 15/11/24
  5. * Time: 20:58
  6. *
  7. * Millions of users per minute, real-time statistics of the total number of online users in the last 15 minutes
  8. */
  9. class OnlineUser
  10. {
  11. public $prefix_key = "online";//key prefix
  12. public function __construct()
  13. {
  14. $this->redis = new Redis();
  15. }
  16. /**
  17. * Add new online users to the collection
  18. *
  19. * @param $uid
  20. */
  21. public function addUser($uid)
  22. {
  23. $this->redis->sAdd($this->prefix_key . date('hi '), $uid);
  24. }
  25. /**
  26. * Get the number of online users
  27. *
  28. * @param $start_min Statistics start minute hi format
  29. * @param $end_min Statistics end minutes
  30. *
  31. * @return mixed
  32. */
  33. public function userNum($start_min, $end_min)
  34. {
  35. //The first parameter, the key name of the union
  36. $params[] = $this->prefix_key . $start_min . '_' . $end_min;
  37. //Traverse all the minutes in the time interval and put them into the parameters
  38. for ($min = $start_min; $min < $end_min; $min++) {
  39. $params[] = $this->prefix_key . $min;
  40. }
  41. //Find the union of all minute users and save it. The performance is much faster than direct calculation and return, eliminating the need for data transmission
  42. $num = call_user_func_array([$this->redis, "sUnionStore"], $params);
  43. //Delete the temporary union
  44. $this->redis->delete($params[0]);
  45. return $num;
  46. }
  47. }
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PHP统计在线用户数
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