Laravel如何同时连接多个数据库详解_php实例_

 DB_CONNECTION=mysql DB_HOST=127.0.0.1 DB_PORT=3306 DB_DATABASE=database_name DB_USERNAME=root DB_PASSWORD=root DB_HOST_TEST=127.0.0.1 DB_PORT_TEST=3306 DB_DATABASE_TEST=database_test DB_USERNAME_TEST=root DB_PASSWORD_TEST=root

 // 默认连接mysql 'default' => env('DB_CONNECTION', 'mysql'), 'connections' => [ 'sqlite' => [ 'driver' => 'sqlite', 'database' => database_path('database.sqlite'), 'prefix' => '', ], 'mysql' => [ 'driver' => 'mysql', 'host' => env('DB_HOST', '127.0.0.1'), 'port' => env('DB_PORT', '3306'), 'database' => env('DB_DATABASE', 'database_name'), 'username' => env('DB_USERNAME', 'root'), 'password' => env('DB_PASSWORD', 'root'), 'charset' => 'utf8', 'collation' => 'utf8_unicode_ci', 'prefix' => '', 'strict' => false, ], 'mysql_test' => [ 'driver' => 'mysql', 'host' => env('DB_HOST_TEST', '127.0.0.1'), 'port' => env('DB_PORT_TEST', '3306'), 'database' => env('DB_DATABASE_TEST', 'database_test'), 'username' => env('DB_USERNAME_TEST', 'root'), 'password' => env('DB_PASSWORD_TEST', 'root'), 'charset' => 'utf8', 'collation' => 'utf8_unicode_ci', 'prefix' => '', 'strict' => false, ], ],

 // 以下是调用方法 Test::get(); Test::where('id',1)->first();

 // 连接mysql_test库 DB::connection('mysql_test')->table('test')->where('id',1)->first(); // 连接mysql库 DB::connection('mysq')->table('test')->where('id',1)->first(); // 连接mysql库 DB::table('test')->where('id',1)->first();