<slide title="Defeating XSS">
<blurb>Before displaying it, modify user input to defang scripts.</blurb>
  <example title="You can remove all HTML and PHP tags" fontsize="1.6em" result="1"><![CDATA[<?php 
    $bad = "<?php header(); ?><blink>Ugh!</blink><?php footer(); ?>";
$ok = strip_tags($bad);
print $ok;
?>]]></example>
</slide>
