Mine

<?
if (file_exists('count.txt'))
{
 $fil = fopen('count.txt', r);
 $dat = fread($fil, filesize('count.txt'));
 fclose($fil);
 $fil = fopen('count.txt', w);
if($dat < 56) {
 fwrite($fil, $dat+1);
print('<h1>Internet Images!</h1>'.$dat);
} else {
 fwrite($fil, '0');
}
}
else
{
 $fil = fopen('count.txt', w);
 fwrite($fil, 1);
 echo '1';
 fclose($fil);
}

?>