public static function connect($type = null, $host = null, $name = null, $user = null, $pass = null)
{
if (!self::$dbh) {
if ($type === null && defined('DB_TYPE')) {
$type = DB_TYPE;
}
if ($host === null && defined('DB_HOST')) {
$host = DB_HOST;
}
if ($name === null && defined('DB_NAME')) {
$name = DB_NAME;
}
if ($user === null && defined('DB_USER')) {
$user = DB_USER;
}
if ($pass === null && defined('DB_PASS')) {
$pass = DB_PASS;
}
try {
self::$dbh = new PDO($type . ':host=' . $host . ';dbname=' . $name, $user, $pass);
self::$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
return self::$dbh;
} catch (Exception $e) {
throw new EpiDatabaseConnectionException('Could not connect to database', EpiException::EPI_EXCEPTION_DB_CONNECTION);
}
} else {
return self::$dbh;
}
}
