urfat-orm/src/ORM/Connections.php

<?php

namespace ORM;

class Connections {

    private static $_connections;
    private $connections = Array();

    private function __construct() {
        
    }

    private static function newObj() {
        if (!isset(self::$_connections)) {
            self::$_connections = new Connections();
        }
        return self::$_connections;
    }

    public static function getInstance() {
        if (!isset(self::$_connections)) {
            return self::newObj();
        }
        return self::$_connections;
    }

    public static function add_connection($pdo, $name = 'default') {
        self::getInstance()->connections[$name] = $pdo;
    }

    public static function get_connection($name = 'default') {
        return self::getInstance()->connections[$name];
    }

}