'实习技师', self::JUNIOR => '初级技师', self::INTERMEDIATE => '中级技师', self::SENIOR => '高级技师', self::EXPERT => '专家技师', self::MASTER => '大师级技师', }; } /** * 获取等级的整数值 * * @return int 等级值 */ public function value(): int { return $this->value; } /** * 检查当前等级是否与指定等级相同 * * @param self $level 要比较的等级 * @return bool 如果等级相同返回 true,否则返回 false */ public function is(self $level): bool { return $this === $level; } /** * 根据整数值创建对应的等级枚举实例 * * @param int $value 等级值 * @return self|null 返回对应的等级枚举实例,如果值无效则返回 null */ public static function fromValue(int $value): ?self { return match($value) { self::TRAINEE->value => self::TRAINEE, self::JUNIOR->value => self::JUNIOR, self::INTERMEDIATE->value => self::INTERMEDIATE, self::SENIOR->value => self::SENIOR, self::EXPERT->value => self::EXPERT, self::MASTER->value => self::MASTER, default => null }; } /** * 获取所有等级的值数组 * * @return array 包含所有等级值的数组 */ public static function values(): array { return array_column(self::cases(), 'value'); } /** * 获取所有等级的键值对数组 * * @return array 等级值作为键,显示文本作为值的关联数组 */ public static function all(): array { return [ self::TRAINEE->value => self::TRAINEE->label(), self::JUNIOR->value => self::JUNIOR->label(), self::INTERMEDIATE->value => self::INTERMEDIATE->label(), self::SENIOR->value => self::SENIOR->label(), self::EXPERT->value => self::EXPERT->label(), self::MASTER->value => self::MASTER->label(), ]; } }