Fixes [DBAL function sql_nextid - name is
misleading](https://tracker.phpbb.com/browse/PHPBB3-8071).
Per the tracker issue:
> This function gets the ID of the last inserted row, not the ID of the next row
to be inserted (which is difficult due to different autoincrement steps and also
lends itself nicely to race conditions).
@iwisdom replied that the naming is consistent with how PHP itself names this
functionality, but the link they posted doesn't support that (I guess this is
referring to a much older version of PHP? The comment is from 2009).
PHPBB3-8071
[ticket/12387] Cleanup *_free_result call and remove @ on that call
* Nicofuma/ticket/12387:
[ticket/12387] Fix a call to sql_freeresult in full_text_native
[ticket/12387] Fix \phpbb\db\driver\mysqli::sql_freeresult
[ticket/12387] Use the hash as query_id for caching
[ticket/12387] Remove unnecessary checks
[ticket/12387] mssql_query return true if a select query returns 0 row
[ticket/12387] Cleanup *_free_result call and remove @ on that call
As the db_connect_id gets set up by mysql_init(), the db_connect_id will be an
object with empty settings instead of just empty. Even if mysql_real_connect()
encounters an error upon connecting, the db_connect_id is still set. This
will result in trying to just access the database which obviously does
nothing.
By setting db_connect_id to an empty string, the script will not try to query
th database and properly handle any errors that occur upon connecting.
PHPBB3-12764
[ticket/12704] Improve the load time information in the footer when enabled
* rxu/ticket/12704:
[ticket/12704] Improve the load time information in the footer when enabled
PR #2570 has added new constant to display load time information without
debug mode is being on (https://tracker.phpbb.com/browse/PHPBB3-12687).
This patch expands the total load time info with SQL/PHP load times,
while hiding the additional info with <abbr> element.
PHPBB3-12704
