if (isPostRequestParameterSet('nickname')) {
// Check if nickname is valid
$PATTERN = '[' . getConfig('nickname_pattern') . ']{' . getConfig('nickname_len') . ',}';
if (isPostRequestParameterSet('nickname')) {
// Check if nickname is valid
$PATTERN = '[' . getConfig('nickname_pattern') . ']{' . getConfig('nickname_len') . ',}';