Methods with the same name as their class will not be constructors in a future version of PHP; ClassModel has a deprecated constructor Query: select * from php_tag where tag='san-pham' group by item_id Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'demowebmau_canthanh-958.php_tag.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by Tag
