source/Application/Model/VariantHandler.php
protected function _getSelections($sTitle)
    {

        if (\OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('blUseMultidimensionVariants')) {
            $aSelections = explode($this->_sMdSeparator, $sTitle);
        } else {
            $aSelections = [$sTitle];
        }

        return $aSelections;
    }
protected function _getSelections($sTitle)
    {

        if (\OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('blUseMultidimensionVariants')) {
            $aSelections = explode($this->_sMdSeparator, $sTitle);
        } else {
            $aSelections = [$sTitle];
        }

        return $aSelections;
    }
protected function _getSelections ( $ sTitle ) { if ( \ OxidEsales \ Eshop \ Core \ Registry :: getConfig ( ) -> getConfigParam ( 'blUseMultidimensionVariants' ) ) { $ aSelections = explode ( $ this -> _sMdSeparator , $ sTitle ) ; } else { $ aSelections = [ $ sTitle ] ; } return $ aSelections ; }
In case multidimentional variants ON explodes title by _sMdSeparator
and returns array, else - returns array containing title

@param string $sTitle title to process

@return array
In case multidimentional variants ON explodes title by _sMdSeparator and returns array else - returns array containing title