Like 58.com, the front-end pages and back-end business logic of multi-city websites are the same, can you share a front-end code and back-end code?

the front-end pages and back-end business logic of multi-city websites like 58.com are the same. can we share a front-end code and a back-end code?
that is, can I use option 2 below?

Php
Mar.09,2021

of course, and this is definitely the latter option.
there is no reason to use the first option

.
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3ae96-2b9cc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3ae96-2b9cc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?