Useful script?

<?php
# UPDATE_JOURNAL.PHP
# Ben Ryves 2005.

# CONFIG:
$journal_id = 273102;           # ID number of your journal.
$items      = 8;                # How many recent journal entries do you want?
$saved_page = 'journal.htm';    # Which page do you want to save the journal to?
$password   = 'password';       # What's the password required to fire off an update?


if (isset($_POST['submit'])) {
    if ($_POST['password']==$password) {
        # Run the update script:
        $url='http://www.gamedev.net/community/forums/lib/rss.asp?mode=journal&jn='.$journal_id;
        $handle = fopen($url,'r');
        $writer = fopen($saved_page,'w');
        if (!$handle) {
        	echo "<p>The RSS feed is not available at the moment - sorry.</p>";
        } else {
        	global $cur_pos, $buffer;
        	$buffer = ';
        	while (!feof ($handle)) {
        		$buffer .= fgets($handle, 4096);
        	}
        	fclose($handle);
        	$cur_pos = strpos($buffer,"<item>");
        	for ($i=0; $i<$items; ++$i) {
        		$title = get_between_text("<title>","</title>");
        		if ($title===false) break;
        		$link = get_between_text("<link>","</link>");
        		$description = html_entity_decode(preg_replace("#&lt;(.*?)&gt;#i","",get_between_text("<description>","</description>")),ENT_QUOTES);
        		$description = preg_replace("#<(.*)#i","...",$description);
        		fwrite($writer,"<p><b><a href=\"$link\" target=\"_blank\">$title</a></b><br /><small>$description</small></p>");
        	}
        	fclose($writer);
        	echo "<p>$saved_page has been updated!</p>";
        	return;
        }
    } else {
        echo "<p>Invalid password: sorry!</p>";
        unset($_POST['submit']);
    }
}

?>
<form method="post">
<p>Please enter your password:
<input type="password" name="password" />
<input type="submit" value="Go!" name="submit" />
</p>
</form>
<?php


function get_between_text($before, $after) {
   global $buffer, $cur_pos;
   $cur_pos = strpos($buffer, $before, $cur_pos);
   if ($cur_pos===false) {
      return false;
   } else {
      $cur_pos+=strlen($before);
      $e = strpos($buffer, $after, $cur_pos);
      return substr($buffer, $cur_pos, $e-$cur_pos);
   }
}

?>