function debug($val,$dump=false,$exit=true){
if($dump)
{ $func='var_dump';}
else{$func=(is_array($val)||is_object($val))?'print_r':'printf' }
header("Content-type:text/html;charset=utf-8");
echo '<pre>debug output:<hr/>';
$func($val);
echo '</pre>';
if($exit) exit;
}
