canBlockStay - Define multiple blocks

How do you define multiple blocks? I want cactus to spawn on SAND and CACTUS. For now, it only spawns on sand.

Code:

    private function canCactusStay($x, $y, $z){
        $b = $this->level->getBlockIdAt($x, $y, $z);
        return ($b === Block::AIR or $b === Block::SNOW_LAYER) and $this->level->getBlockIdAt($x, $y - 1, $z) === Block::SAND;
    }

PHP:

private function canCactusStay($x, $y, $z){
        $array = [Block::SAND, Block::ANOTHER_BLOCK];
        $b = $this->level->getBlockIdAt($x, $y, $z);
        return ($b === Block::AIR or $b === Block::SNOW_LAYER) and in_array($this->level->getBlockIdAt($x, $y - 1, $z), $array);
    }

Dang, that was simple! Thanks