UserFieldEnumerationSynchronizer::prepareValueMap

static function prepareValueMap(array $items)
{
	$map = array();
	foreach($items as $item)
	{
		$value = isset($item['VALUE']) ? $item['VALUE'] : '';
		if($value === '')
		{
			continue;
		}
		$map[md5($value)] = $item;
	}
	return $map;
}