Mysql A table has multiple keys corresponding to the id of another table

Mysql has multiple keys in one table that correspond to the id of another table
Correspondence between the two tables:

$user_address=D('UserAddress')->query("SELECT m.id,name,phone,address,m.province,n.areaname,m.city,o.areaname as area2name, m.district, p.areaname as area3name FROM `ez_user_address` as m INNER JOIN ez_area as n on m.province=n.id INNER JOIN ez_area as o on m.city=o.id INNER JOIN ez_area as p on m.district=p.id WHERE m.id=1");<br> //dump($user_address);exit;Print result: