OracleConnection::getErrorMessage

public function getErrorMessage($resource = null)
{
	if ($resource)
		$error = oci_error($resource);
	else
		$error = oci_error();

	if (!$error)
		return "";

	$result = sprintf("[%s] %s", $error["code"], $error["message"]);
	if (!empty($error["sqltext"]))
		$result .= sprintf(" (%s)", $error["sqltext"]);

	return $result;
}