This is a more complex counter than the last one I wrote, this one will tell you any error and it will tell you when it's been updated, all you have to do is make a file counter.txt

<?php 
// the name of the counter file 
$filename = "counter.txt"; 

// get the contents of the file 
$views = intval(file_get_contents($filename)); 

$views++; 

echo "This page has been viewed ". $views ." times."; 

// check if the file exists, 
// and can be written to. 
if (is_writable($filename)) 
{ 
   // open the file for writing ('w') 
   if ($fp = fopen($filename, 'w')) 
   { 
       // write to the file. Put "1" in it. 
       if (fwrite($fp, $views) !== FALSE) 
       { 
           // you can remove this line 
           echo "Counter was updated!"; 
            // close the file 
            fclose($fp); 
       } 
       else 
       { 
           echo "Could not write to file $filename"; 
       } 
   } 
   else 
   { 
       echo "Could not open file $filename for writing."; 
   }                 
} 
else 
{ 
   echo "The file $filename is not writable"; 
} 
?>