我想用模块和sql查询从数据库prestashop category info获取，但如果我尝试分配foreach数组prestashop，请返回一个错误代码： Parse error: syntax error, unexpected 'return' (T_RETURN) 这是我的密码

public function hookDisplayHome()
    {
    $getcategory = Db::getInstance()->executeS('SELECT * FROM `'._DB_PREFIX_.'category_lang`');
    $cattegoryinfo=array();
    foreach($getcategory as $getcategoryinfo){
        $cattegoryinfo[] = array(
         "name" => $getcategoryinfo['name']
         );
    }
         $this->context->smarty->assign('categories', $cattegoryinfo);
         return $this->display(__FILE__,'views/showcategory.tpl');
}