Best way to connect multiple databases in Laravel [duplicate] - php

Question

This question already has answers here:
How to use multiple databases in Laravel
(7 answers)
Closed 5 years ago.
I am creating a multi-tenant application in which, based on the sub-domain, I am connecting to a database of that particular tenant.
Here is code to do that:
// To connect with a subdomain - the entry will be in config/database.php.
public static function connectSubdomainDatabase($dbname)
{
$res = DB::select("show databases like '{$dbname}'");
if (count($res) == 0) {
App::abort(404);
}
Config::set('database.connections.subdomain.database', $dbname);
//If you want to use query builder without having to specify the connection
Config::set('database.default', 'subdomain');
DB::reconnect('subdomain');
}
Is it the best way to connect with a database or is there any problem that because I am thinking from the performance point of view because every time I am connecting with the database when there are different subdomains. What is the best possible way to do that?

Answer 1

This is nearly the best way to do this. In the end, it's all opinion anyway. However, I would create a connection in the configuration file for each of the subdomains. Then, in your connectSubdomainDatabase() function, I would get the current subdomain instead of passing a database name. You can already specify a connection in laravel, the only place you should be using database names is in the config file.
So, something like this:
// To connect with a subdomain - the entry will be in config/database.php.
public static function connectSubdomainDatabase()
{
// Break apart host
$urlParts = explode('.', $_SERVER['HTTP_HOST']);
// Change default connection
Config::set('database.default', $urlParts[0]);
}
Where the config/database.php connections is:
'connections' => [
'subdomain1' => [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
],
'subdomain2' => [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
],
],