with-properties.php

<?php

enum WeekDay {
    case MONDAY(1, 'Mon', 'Monday');
    case TUESDAY(2, 'Tue', 'Tuesday');
    case WEDNESDAY(3, 'Wed', 'Wednesday');
    case THURSDAY(4, 'Thu', 'Thursday');
    case FRIDAY(5, 'Fri', 'Friday');
    case SATURDAY(6, 'Sat', 'Saturday');
    case SUNDAY(7, 'Sun', 'Sunday');
   
    private function __construct(private int $num, private string $short, private string $long) {}
    
    public function getNum(): int {
        return $this->num;
    }
    public function getShort(): string {
        return $this->short;
    }
    public function getLong(): string {
        return $this->long;
    }
}

without-properties.php

<?php

enum WeekDay {
    case MONDAY;
    case TUESDAY;
    case WEDNESDAY;
    case THURSDAY;
    case FRIDAY;
    case SATURDAY;
    case SUNDAY;
    
    public function getNum(): int {
        return match($this) {
            self::MONDAY => 1,
            self::TUESDAY => 2,
            self::WEDNESDAY => 3,
            self::THURSDAY => 4,
            self::FRIDAY => 5,
            self::SATURDAY => 6,
            self::SUNDAY => 7
        };
    }
    public function getShort(): string {
        return match($this) {
            self::MONDAY => 'Mon',
            self::TUESDAY => 'Tue',
            self::WEDNESDAY => 'Wed',
            self::THURSDAY => 'Thu',
            self::FRIDAY => 'Fri',
            self::SATURDAY => 'Sat',
            self::SUNDAY => 'Sun'
        };
    }
    public function getLong(): string {
        return match($this) {
            self::MONDAY => 'Monday',
            self::TUESDAY => 'Tuesday',
            self::WEDNESDAY => 'Wednesday',
            self::THURSDAY => 'Thursday',
            self::FRIDAY => 'Friday',
            self::SATURDAY => 'Saturday',
            self::SUNDAY => 'Sunday'
        };
    }
}