[Snippet] PopUpGuide --- Need Help w/ some "optimizing" of the code!

<?php
// --------------------
// SNIPPET: PopUpGuide
// --------------------
// Version: 1.0
// Date: January 6th, 2008
// Plugin By: Soshite on ModXCMS.com ([email protected])
// A big thanks goes to...
// - BobRay (Sr. Member)
// - sottwell (Documentation Team)
//
// This snippet is designed to output a selected guide in a new page.
// The document that has the snippet call should be a "minimal" template, w/out any formatting.
// Thus, you could put DIV layers in between the snippet call to create a header+footer for info about the guide author, etc.
// If you need multiple URL parameters, duplicate this plugin, and change $urlParam.
// Note that HTML entities are removed when the file is parsed, so there shouldn't be any injection issues. ;)

// CONFIGURATION SETTINGS

    // $urlParam [string]
    // By default, the plugin uses "data" for it's the URL parameter, but you can change it here.
    $urlParam = isset($urlParam) ? $urlParam : 'data';

// END CONFIG SETTINGS --- DO NOT EDIT BELOW THIS LINE

$filename = $_GET[$urlParam]; // Grab the url parameter

$text = file_get_contents ($filename);
$output='<div id="header"><div class="float"><p></p>Hosted by <a href="http://symphonicheaven.com">Symphonic Heaven</a><br />*Permission from the author of this guide was obtained before it was uploaded to the website.*<br><br><b><a href="'.$filename.'">Download Original Version (.txt)</a></b><p></p></div></div><div class="fileOutput">';  // so you can style it
$output .= '<pre>';
$output .= htmlentities($text, ENT_QUOTES);
$output .='</pre>';
$output .='</div><div id="footer"><div class="float"><p></p>Hosted by <a href="http://symphonicheaven.com">Symphonic Heaven</a><br />*Permission from the author of this guide was obtained before it was uploaded to the website.*<br><br><b><a href="'.$filename.'">Download Original Version (.txt)</a><p></p></div></div>';
return $output;
?>

$css = isset($css) ? $css : 'tab3';

$fSize = filesize ( $filename );

[[FileSize? &filename=`myfile`]]

return filesize($filename);

<?php
$output = <<<EOD
	
<div id="header">
<div class="float">
<p>Hosted by <a href="http://symphonicheaven.com">Symphonic Heaven</a></p>
<p>*Permission from the author of this guide was obtained before it was uploaded to the website.*</p>
<strong><a href="$filename">Download Original Version (.txt)</a></strong>
</div>
</div>
<div class="fileOutput">
<pre>
htmlentities($text, ENT_QUOTES)
</pre>
</div>
<div id="footer">
<div class="float">
<p>Hosted by <a href="http://symphonicheaven.com">Symphonic Heaven</a></p>
<p>*Permission from the author of this guide was obtained before it was uploaded to the website.*</p>
<p><strong><a href="$filename">Download Original Version (.txt)</a></strong></p>
</div>
</div>
EOD;
?>

<?php
$output = <<<EOD
	
<div id="header">
    <div class="float">
        <p>Hosted by <a href="http://symphonicheaven.com">Symphonic Heaven</a></p>
        <p>*Permission from the author of this guide was obtained before it was uploaded to the website.*</p>
        <strong><a href="$filename">Download Original Version (.txt)</a></strong>
    </div>  <!-- end of float div -->
</div>  <!--  end of header div -->
<div class="fileOutput">
    <pre>
        htmlentities($text, ENT_QUOTES)
    </pre>
</div> <!--  end of fileOutput div -->
<div id="footer">
    <div class="float">
        <p>Hosted by <a href="http://symphonicheaven.com">Symphonic Heaven</a></p>
        <p>*Permission from the author of this guide was obtained before it was uploaded to the website.*</p>
        <p><strong><a href="$filename">Download Original Version (.txt)</a></strong></p>
    </div> <!--  End of float div -->
</div> <!--  end of footer div -->
EOD;
?>