DB::query("SELECT COUNT(*) FROM ". DB::table('vgallerys')." where uid IN (SELECT pre_home_friend.fuid FROM pre_home_friend WHERE uid = '$discuz_uid') and album=0"); 这句话的意思看不懂，求解。希望好心人帮助
就是返回符合条件的记录有多少条. 输出 sql 你就知道完整的内容是什么了.echo "SELECT COUNT(*) FROM ". DB::table('vgallerys')." where uid IN (SELECT pre_home_friend.fuid FROM pre_home_friend WHERE uid = '$discuz_uid') and album=0";
输出 sql 你就知道完整的内容是什么了.echo "SELECT COUNT(*) FROM ". DB::table('vgallerys')." where uid IN (SELECT pre_home_friend.fuid FROM pre_home_friend WHERE uid = '$discuz_uid') and album=0";