hydra-sql/src/SQLLogin/SQLLoginConnect.php

<?php

namespace App\SQLLogin;

use PDO;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;

class SQLLoginConnect extends AbstractController
{
    private static $_instance = null;

    /**
     * Méthode qui crée l'unique instance de la classe
     * si elle n'existe pas encore puis la retourne.
     */
    public static function getInstance(): SQLLoginConnect
    {
        if (is_null(self::$_instance)) {
            self::$_instance = new SQLLoginConnect();
        }

        return self::$_instance;
    }

    public function connect($urlDatabase, $dbUser, $dbPassword): PDO
    {
        $options = [
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_TIMEOUT => 5,
            PDO::ATTR_PERSISTENT => false,
        ];

        return new PDO($urlDatabase, $dbUser, $dbPassword, $options);
    }
}