function outputForm($checksum) { //ksort($_POST); foreach($_POST as $key => $value) { if ($key == 'returnUrl') { echo '<input type="hidden" name="'.$key.'" value="'.Checksum::sanitizedURL($value).'" />'."\n"; } else { echo '<input type="hidden" name="'.$key.'" value="'.Checksum::sanitizedParam($value).'" />'."\n"; } } echo '<input type="hidden" name="checksum" value="'.$checksum.'" />'."\n"; }