How to count the number of online users of a website using php? php Tutorial

Php allows you to count the number of online users of a website. Php: how to count the number of online users of a website. This document describes how to count the number of online users of a website in php. Share it with you for your reference. The specific implementation method is as follows:

This example describes how to use php to count the number of online users of a website. Share it with you for your reference. The specific implementation method is as follows:

 $val) {  $val= trim($val);  if ($val != "") {  list($when, $seti) = explode("\t", $val);  if ($seti ==$ip) {   $arr[$key] = $time . "\t" . $seti;   $flag = 1;  } else {   $currentTime = time();   if ($currentTime - $when > 900) {   unset($arr[$key]);   }else{   $arr[$key]=$val;   }  }   }  }  if ($flag == 0) {  array_push($arr, $time . "\t" . $ip); }  $count = count($arr); $str = implode("\r\n", $arr); $str.="\r\n"; writeover($fileCount, $str, 'w', 0); unset($arr); }  return $count;} $time = time();$ip = getIpAddress();$online_num = count_online_num($time,$ip);echo $online_num;?>

The above is the php method for counting the number of online users of the website. The php online number _ PHP Tutorial content. For more information, see PHP Chinese website (www.php1.cn )!

Examples in this article describes how php can calculate the number of online users of a website. Share it with you for your reference. The specific implementation method is as follows...