<?php
function browser($userAgent) {
	$agent = stripos($userAgent, 'mobile') ? 'Mobile ' : '';
	$needle = array('Opera' => 'Opera','OPR' => 'Opera','Edge' => 'Edge', 'Chrome' => 'Chrome','Safari' => 'Safari','Firefox' => 'Firefox','MSIE' => 'IE','Trident/7' =>'IE');
	foreach ($needle as $key => $value) {
		if (strpos($userAgent,$key)) { return $agent.$value; }
	}
	return $agent.'Other';
}

$page = substr($body,6,-4); //current page
if ($usr['privs'] < 9 and (empty($_SESSION['lastHit4']) or $page != $_SESSION['lastHit4'])) { //no admin and a new page
	$userAgent = $_SERVER['HTTP_USER_AGENT'];
	//check if hit or bot and get counter
	$file = (preg_match('/bot|crawl|slurp|spider/i',$userAgent)) ? 'bot' : 'hit';
	$counter = is_readable("./logs/{$file}cnt.log") ? file_get_contents("./logs/{$file}cnt.log") : 0; //get hit / bot counter
	//collect visitor's data
	$tStamp = $_SERVER['REQUEST_TIME'];
	$host = gethostbyaddr($_SERVER['REMOTE_ADDR']);
	$agent = browser($userAgent);
	if (!empty($_SESSION['lastHit1']) and !empty($_SESSION['lastHit2']) and !empty($_SESSION['lastHit3']) and //last hit data present
		(($tStamp - $_SESSION['lastHit1']) < 600) and $host == $_SESSION['lastHit2'] and $agent == $_SESSION['lastHit3']) { //< 10 minutes ago: repeating hit
		$newHit = false;
		$_SESSION['lastHit1'] = $tStamp; //save last hit time stamp
		$_SESSION['lastHit4'] = $page;
		$logData = ', '.$page; //add page
	} else { //new hit
		$newHit = true;
		$_SESSION['lastHit1'] = $tStamp; //save last hit data
		$_SESSION['lastHit2'] = $host;
		$_SESSION['lastHit3'] = $agent;
		$_SESSION['lastHit4'] = $page;
		$logData = (intval($counter) % 50 == 0) ? "\n\nDATE       TIME  HOST                                     BROWSER         PAGES" : ''; //titles every 50 lines
		$logData .= "\n".date("Y.m.d H:i",$tStamp)." ".str_pad(substr($host,-40),40)." ".str_pad($agent,15)." ".$page;
	}
	file_put_contents("./logs/{$file}log.log",$logData,FILE_APPEND | LOCK_EX);//append log data to hitlog/botlog file
	if ($newHit) { //increment hit/bot counter
		$counter = $counter ? strval(intval($counter) + 1) : '1';
		file_put_contents("./logs/{$file}cnt.log",$counter,LOCK_EX); //save hit/bot counter
	}
}
?>