<?php
// get the filename for the comment log
$parts=parse_url($_SERVER['REQUEST_URI']));
$filename=$parts['path'];
$filename=str_replace(array("/","\","."),"-",$filename);
$filename.=".comments";

// save the comment?
if($_POST['comment-now'])) {
  $comment=strip_tags(stripslashes($_POST['comment']));
  $source =strip_tags(stripslashes($_POST['source']));

  $f=fopen($filename,"at");
  if($f) {
    fwrite($f,"<div class='comment_block'>");
    fwrite($f,"<blockquote>$comment</blockquote>");
    fwrite($f,"<cite>$source</cite>");
    fwrite($f,"<p class='time'>$now</p>");
    fwrite($f,"</div>");
    fclose($f);
  }
}

// display the existing comments
if(file_exists($filename)) {
  echo "<div class='comments'>";
  echo file_get_contents($filename);
  echo "</div>";
}

// display the comment form
?>
<form action='' method='post'>
<table>

<tr>
<td>Your name</td>
<td><input type='text' name='source' /></td>
</tr>

<tr>
<td>Your comment</td>
<td><textarea name='comment'></textarea></td>
</tr>

<tr>
<td>Ready?</td>
<td><input type='submit' name='comment-now' value='Add Comment'></td>
</tr>

</table>
</form>