tp5封装了DB和db两个使用库,用法都差不多
首先database.php
'database' => 'test',
'username' => 'root',
'password' => '123456',
'hostport' => '3306',
'dsn' => '',
'params' => [],
'charset' => 'utf8',
'prefix' => 'tp_',
数据库’test’,表’tp_user’

查询
Db::table('tp_user')->find();
Db::name('tp_user')->getLastSql();
Db::table('tp_user')->where('id', 1)->find()
Db::name('user')->where('id', 1)->select();
Db::table('tp_user')->where('id', 0)->selectOrFail()
\db('user')->select();
\db('user')->column('username', 'id')
\db('user')->where('username','user')->value('username');