Online counter of visitors for a certain time without using database Counts new users, cleans up-to-date time data
Add php file to widgets add params
$pastTime integer Time in seconds to count visits, default 60 sec
$urlToData string Url to folder, default is /web/uploads/data
$urlToFile string Url to File default is /web/uploads/data/online.dat
Put it <?= OnlineCounter::widget() ?> to some were on layout
P.S. If someone simplifies all this, i will be glad to add or change this code