Solved make 20 health to 10

When I Do getMaxHealth() and it ends up to be 20 but there's actually 10 heart in game how do i make 20 to 10?

 

From the Minecraft Wiki:

In other words, each full heart represents 2 health points. That means that a half heart is worth 1 health point. If you really want to turn health into a floating point number, you can simply divide the result by 2, but I'm guessing that's not what you really want.

 

What do you call a half heart if health is an integer?

 

solved

PHP:

$player->sendMessage("hearts:> ".$player->getMaxHealth() / 2);