Počítadlo v php

<?php

 function read_data(){
  $my_ip='127.0.0.1';
  $ip = $_SERVER["REMOTE_ADDR"];
  
  $c=file("pocitadlo/stat.log");
  $test = $_COOKIE["hendrek_counter"];
  
   
  if (($test != "ok") && ($ip<>$my_ip))
  {
   setcookie("hendrek_counter","ok");
   $f=fopen("pocitadlo/stat.log","w");
    if(flock($f, LOCK_EX)){
     fwrite($f,$c[0]+1);
     flock($f, LOCK_UN);
    }
   fclose($f);
  }
  
  return $c[0];
}
 
 function display_data($data) {
 $i=0;
 $l=strlen($data);
  while($i<$l){
    echo "<img src=\"pocitadlo/".$data[$i].".png\" alt=\"".$data[$i]."\" />";
    $i++;
  }
 }

 
?>

<?php 
 include 'pocitadlo/counter.php';
 $x=read_data();
?>