Simple example of multiple database connection in laravel 8.
Set in ENV Variable
.env
DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=database1
DB_USERNAME=root
DB_PASSWORD=root
DB_CONNECTION_SECOND=mysql
DB_HOST_SECOND=127.0.0.1
DB_PORT_SECOND=3306
DB_DATABASE_SECOND=database2
DB_USERNAME_SECOND=root
DB_PASSWORD_SECOND=root
config/database.php
<?php
use Illuminate\Support\Str;
return [
'default' => env('DB_CONNECTION', 'mysql'),
'connections' => [
'mysql' => [
'driver' => 'mysql',
'url' => env('DATABASE_URL'),
'host' => env('DB_HOST', '127.0.0.1'),
'port' => env('DB_PORT', '3306'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'unix_socket' => env('DB_SOCKET', ''),
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'prefix' => '',
'prefix_indexes' => true,
'strict' => true,
'engine' => null,
'options' => extension_loaded('pdo_mysql') ? array_filter([
PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
]) : [],
],
'mysql2' => [
'driver' => env('DB_CONNECTION_SECOND'),
'host' => env('DB_HOST_SECOND', '127.0.0.1'),
'port' => env('DB_PORT_SECOND', '3306'),
'database' => env('DB_DATABASE_SECOND', 'forge'),
'username' => env('DB_USERNAME_SECOND', 'forge'),
'password' => env('DB_PASSWORD_SECOND', ''),
'unix_socket' => '',
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'prefix' => '',
'prefix_indexes' => true,
'strict' => true,
'engine' => null,
],
Use Database Multiple Connection
Database connection in Migration
Default
<?php
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('firstname');
$table->string('lastname');
$table->timestamps();
});
}
Second
<?php
public function up()
{
Schema::connection('mysql2')->create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('firstname');
$table->string('lastname');
$table->timestamps();
});
}
Database connection in Model
Default
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model
{
}
Second
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model
{
protected $connection = 'mysql2';
}
Database connection in Controller
Default
<?php
class UserController extends BaseController
{
public function show()
{
$user = new User;
$find = $user->find(1);
return $find;
}
}
Second
<?php
class UserController extends BaseController
{
public function show()
{
$user = new User;
$user->setConnection('mysql2');
$find = $user->find(1);
return $find;
}
}
Database connection in Query Builder
Default
$users = DB::table('users')->get();
Second
$users = DB::connection('mysql2')->table('users')->get();