static function createFromFormatYmd($string_date)
{
if ($string_date) {
$configJ = JComponentHelper::getParams('com_bookpro');
$php_format = $configJ->get('date_day_short', 'Y-m-d');
$date = Jdate::createFromFormat($php_format, $string_date);
if ($date) {
return $date->format('Y-m-d');
}
}
return '';
}