improved version, forgot about comma
<?
$fp=fopen("counter.txt","r+");
$contents=fread($fp,filesize("counter.txt"));
$contents=trim($contents);
$contents+=1;
rewind($fp);
fwrite($fp,$contents,strlen($contents));
$contents=number_format($contents,0,".",",");
echo "Your counter is: ".$contents;
//$contents=(string)$contents; // $contents[$a] doesn't seem to work with numbers so convert to string
for($a=0;$a<strlen($contents);$a++)
{
if ($contents[$a]==",")
$filename="imagecomma.jpg";
else
$filename="image".$contents[$a].".jpg";
//echo "\n<br>Filename: ".$filename."";
echo "<br>\n<img src='gfx/".$filename."'>";
}
?>