Exemplos de DB_Handler::instance em PHP

Exemplo n.º 1

Arquivo: DB_Handler.php Projeto: asmari/zcosp

 public static function connect($db_name, $host, $user, $password)
 {
     if (self::$instance == null) {
         self::$instance = new self($db_name, $host, $user, $password);
     } else {
         die('cannot instantiate two times !');
     }
     return self::$instance;
 }