DAVIAC-web/footer.php

<div id=footer class=footer>
  <div class="update"><p>Site last updated
<?php
exec("cd /var/www/daviac && /usr/bin/git show -s --format=%ci 2>&1", $output, $errno);
echo $output[0];
?>
  </p></div>
  <div class="counter"><p>Visits: 
<?php
session_start();
if(!isset($_SESSION['counter'])) {
  $c_handle = fopen("../data/counter.txt", "r");
    if(!$c_handle){
      echo "error";
    } else {
      $counter = ( int ) fread($c_handle,32);
      fclose($c_handle);
      $counter++ ;
      echo $counter;
      $c_handle = fopen("../data/counter.txt", "w");
      fwrite($c_handle, $counter);
      fclose($c_handle);
      $_SESSION['counter'] = $counter;
    }
} else {
  $counter = $_SESSION['counter'];
  echo $counter;
}

?>
    </p></div>
  </div>
</div>