This is the Credit Card sidebox code:

<?php
$content = '';
$content .= '<div id="' . str_replace('_', '-', $box_id . 'Content') . '" class="sideBoxContent">' . "\n";
$content .= '<img id="ccVisa" class="cc_img" src="images/cc_logos/logo_ccVisa.gif" />' . "\n" .
'<img id="ccMC" class="cc_img" src="images/cc_logos/logo_ccMC.gif" />' . "\n" .
'<img id="ccAmex" class="cc_img" src="images/cc_logos/logo_ccAmex.gif" />' . "\n" .
'<img id="ccDiscover" class="cc_img" src="images/cc_logos/logo_ccDiscover.gif" />' . "\n";
$content .= '</div>' . "\n";
?>

I want to add this scanalert code to bottom:

<!-- START SCANALERT CODE -->
<a target="_blank" href="https://www.scanalert.com/RatingVerify?ref=www.nokoria.com"><img width="115" height="30" border="0" src="//images.scanalert.com/meter/www.nokoria.com/32.gif" alt="HACKER SAFE certified sites prevent over 99.9&#37; of hacker crime." oncontextmenu="alert('Copying Prohibited by Law - HACKER SAFE is a Trademark of ScanAlert'); return false;"></a>
<!-- END SCANALERT CODE -->


How can I achieve this?

Any help is much appreciated. Thank you.