Results::getWarningsString

protected function getWarningsString($warnings)
{
	if(!is_array($warnings) || empty($warnings))
		return "";

	reset($warnings);

	if(key($warnings) !== 0)
		$warnings = array( 0 => $warnings);

	$result = "";

	foreach($warnings as $warning)
		$result .= "Warning: ".$warning["Message"]." (warning code:  ".$warning["Code"].").n";

	return $result;
}