define("csv_delimeter", ";"); // Trennzeichen
define("db_user", "xxxxxx"); // Username
define("db_password", "xxxxx"); // Passwort
define("db_server", "localhost"); // Host
define("db_db_name", "xxxxxxxx"); // Name der Datenbank

mysql_connect(db_server, db_user, db_password) or die(mysql_error());

mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead