Provider::clearProviderName

static function clearProviderName($providerName)
{
	if (empty($providerName) || !is_string($providerName))
	{
		return '';
	}

	if (mb_substr($providerName, 0, 1) === "\")
	{
		$providerName = mb_substr($providerName, 1);
	}

	return trim($providerName);
}