Common method for combined query of multiple tables in ThinkPHP _ PHP Tutorial

Common methods for combined query of multiple tables in ThinkPHP. In ThinkPHP, you can use the table () method or join method for join queries (that is, multi-table joint query). The following is an example: 1. native Query example: $ ModelnewModel (); in $ SQL ThinkPHP, you can use the table () method or join method for associated queries (that is, multi-table joint queries). The following example shows how to use the join method:

1,Native queryExample:

$Model = new Model();$sql = 'select a.id,a.title,b.content from think_test1 as a, think_test2 as b where a.id=b.id '.$map.' order by a.id '.$sort.' limit '.$p->firstRow.','.$p->listRows;$voList = $Model->query($sql);

2,Join ()Example:

$user = new Model('user');$list = $user->join('RIGHT JOIN user_profile ON user_stats.id = user_profile.typeid' );

3,Table ()Example:

$list = $user->table('user_status stats, user_profile profile')->where('stats.id = profile.typeid')->field('stats.id as id, stats.display as display, profile.title as title,profile.content as content')->order('stats.id desc' )->select();

You can use the table () method or join method for tables (that is, multi-table joint query), as shown in the following example: 1. native Query example: $ Model = new Model (); $ SQL...