The function qa_opt() can be used for both setting and getting an option value.
qa_opt('site_titlex', 'test forum ...') # set value
$var = qa_opt('site_titlex') # get value
Options are stored in the database table qa_options:
MariaDB [db]> describe qa_options;
+---------+----------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------+----------------+------+-----+---------+-------+
| title | varchar(40) | NO | PRI | NULL | |
| content | varchar(12000) | NO | | NULL | |
+---------+----------------+------+-----+---------+-------+
2 rows in set (0.01 sec)
so you could also manually add an option to the database
INSERT INTO qa_options VALUES ('site_titlex', 'test forum ...');
and then just use qa_opt('site_titlex') in Q2A.