or download this
#!/usr/bin/perl -T -- -*- cperl -*-
$==$ENV{'CONTENT_LENGTH'};for(split/&/,($=>0)?(map{read(STDIN,$.,$_)}
$.):($ENV{'QUERY_STRING'})){s;\+; ;g;($:,$,)=map{s;%(..);pack("c",hex
...
."td><td>$_{$_}</td></tr>"}keys%_)."</tbody></table></body></html>";
$_="Content-type: text/html$/$/";print;