Advanced Search

How many users are connected to a site.

/ Published in: PHP
Save to your folder(s)
Count how many users are connected to a site (execute this function in every page, put it in the header).

Expand | Embed | Plain Text

Copy this code and paste it in your HTML 
  1. function getIP() {
  2. 	$ip="";
  3. 	if (getenv("HTTP_CLIENT_IP")) $ip = getenv("HTTP_CLIENT_IP");
  4. 		else if(getenv("HTTP_X_FORWARDED_FOR")) $ip = getenv("HTTP_X_FORWARDED_FOR");
  5. 		else if(getenv("REMOTE_ADDR")) $ip = getenv("REMOTE_ADDR");
  6. 		else $ip = "";
  7. 	return $ip;
  8. }
  9.  
  10. function howManyIps() {
  11. 	$filename = "./howmanyip.log";
  12. 	$seconds = 300;
  13. 	$yourIP = getIP();
  14.  
  15. 	if (file_exists($filename.".lock")) $readonly = true; else $readonly=false;
  16.  
  17. 	$count = 0;
  18. 	//lock the file
  19. 	if (!$readonly) $fpLock = fopen($filename".lock", "w");
  20.  
  21. 	//read data ips
  22. 	$fp = fopen($filename, "r");
  23. 	$arIPS=explode ("\n", fread($fp,filesize($filename)) );
  24. 	fclose($fp);
  25.  
  26. 	//if file is locked get out
  27. 	if ($readonly) return count($arIPS);
  28.  
  29. 	$s = "";
  30. 	$already=false;
  31. 	//update data and search user ip
  32. 	for ($i=0;$i<count($arIPS);$i++) {
  33.  
  34. 		$arData= explode (" ", $arIPS[$i]);
  35.  
  36. 		//update your user timer
  37. 		if ($yourIP==$arData[0]) {
  38. 			$already=true;
  39. 			$arData[1]=time();
  40. 		}
  41.  
  42. 		// check if user is old
  43. 		if ( time()- (integer)$arData[1] < $seconds ){
  44. 			$s.=$arData[0]." ".$arData[1]."\n";
  45. 			$count++;
  46. 		}
  47.  
  48. 	}
  49.  
  50. 	if (!$already) {
  51. 		//your user is new, add it to the list
  52. 		$s.=$yourIP." ".time()."\n";
  53. 		$count++;
  54. 	}
  55.  
  56. 	//save the list
  57. 	$fp = fopen($filename, "w");
  58. 	fwrite($fp,$s);
  59. 	fclose($fp);
  60.  
  61. 	//remove thr lock
  62. 	fclose($fpLock);
  63. 	unlink($filename.".lock");
  64.  
  65. 	return $count;
  66.  
  67. }

URL: http://www.barattalo.it/2009/12/03/how-many-users-are-connected/

Report this snippet


Comments

RSS Icon Subscribe to comments

You need to login to post a comment.