¿Contador de visitas con php?

<? 
  
 $tiempo = 60 * 24; 
 $found = 0; 
 $users = 0; 
 $user  = ""; 
 $ip = $REMOTE_ADDR; 
 $time = time(); 
  
 $debug = $DOCUMENT_ROOT."/debug"; 
  
 if (!is_file("$debug/hoy.txt")) { 
         $s = fopen("$debug/hoy.txt","w"); 
         fclose($s); chmod("$debug/hoy.txt",0666); 
 } 
  
 $f = fopen("$debug/hoy.txt","r+"); flock($f,2); 
  
 while (!feof($f)) { $user[] = chop(fgets($f,65536)); } 
  
 fseek($f,0,SEEK_SET); ftruncate($f,0); 
  
 foreach ($user as $line) { 
         list($gip,$gtime) = split("\|",$line); 
         if ($gip == $ip) { $gtime = $time; $bla = 1; } 
         if ($time < $gtime + ($tiempo * 60)) { 
             fputs($f,"$gip|$gtime\n"); 
             $users = $users + 1; 
         } 
 } 
  
 if ($bla == 0) { fputs($f,"$ip|$time\n"); $users = $users + 1; } 
  
 fclose ($f); 
 echo "Visitas hoy: $users"; 
  
 ?>

<?PHP
$countfile = "count.dat";
$diafile = "dia.dat";
$countdia = "count_dia.dat";
$arr = getdate();
$since = $arr["mday"];

$exist_file = fopen($countfile, "r+");
$new_count = fgets($exist_file, 255);
$new_count++;
fseek($exist_file,SEEK_SET);
fputs($exist_file, $new_count);
fclose($exist_file);

$abrir_dia = fopen($diafile, "r+");
$nuevo_dia = fgets($abrir_dia, 255);
fclose($abrir_dia);
if ($nuevo_dia != $since)
{
$undia_mas = fopen($diafile, "w");
fputs($undia_mas, $since);
fclose($undia_mas);
}

$visit_dia = fopen($countdia, "r+");
$new_visit = fgets($visit_dia, 255);
$new_visit++;
if ($nuevo_dia != $since)
{
fclose($visit_dia);
$a_cero = fopen($countdia, "w");
fputs($a_cero, "1");
fclose($a_cero);
}
else
{
fseek($visit_dia,SEEK_SET);
fputs($visit_dia, $new_visit);
fclose($visit_dia);
}

print("<br>
<br>
 <span class=\"todayvisit\">Visitors today:</span> $new_visit ");

?>