|
public static validate_required ( $value, |
||
| $control | The control that defines the value | |
| $form | The container that holds the control | |
| $warning | string | An optional error message |
| Результат | array | An empty array if the value exists, or an array with strings describing the errors |
public static function validate_required($value, $control, $form, $warning = null)
{
if (empty($value) || $value == '') {
$warning = empty($warning) ? _t('A value for the %s field is required.', array($control->get_label())) : $warning;
return array($warning);
}
return array();
}