Yii2 Enum

gistfile1.txt

/**
 * Class BaseEnum.
 */
abstract class BaseEnum
{
    /**
     * Get All Labels
     * @return array
     */
    public static function getLabels(): array
    {
        $reflectionClass = new \ReflectionClass(__CLASS__);

        $labels = [];
        foreach ($reflectionClass->getConstants() as $constantName => $constantValue) {
            $constantName = str_replace('_', ' ', $constantName);
            $constantName = strtolower($constantName);
            $labels[$constantValue] = ucwords($constantName);
        }

        return $labels;
    }

    /**
     * Get Keys
     * @return array
     */
    public static function getKeys(): array
    {
        $items = self::getLabels();
        return array_keys($items);
    }

    /**
     * Get Label by Key
     * @param $key
     * @return string
     */
    public static function getLabelByKey($key): string
    {
        $items = self::getLabels();
        return $items[$key] ?? $key;
    }
}