[Question]Docs

How do devs get functions on the docs ?? Like commandDispatch or setplayergamemode? I need it for my network CrafterRealm

You can search them using the search text box on top right, or search manually on the left list.

So if i want a player to heal when the run the command heal i would use

setHealth(20)

Yes.

PHP:

public function onCommand(CommandSender $sender, Command $cmd, $label, array $args){
    switch($cmd->getName()){
        case "heal":
        $sender->setHealth(20);
    }
}

Just changing your code a little @luca28pet ^-^

PHP:

public function onCommand(CommandSender $sender, Command $cmd, $label, array $args){
    switch($cmd->getName()){
        case "heal":
            $sender->setHealth(20);
            return true;
        break;
    }
}

(Its good practice to always return something at the end of a command and break them as well)

You need to make sure it's a player first.

PHP:

public function onCommand(CommandSender $sender,Command $cmd,$label,array $args) {
  if($sender instanceof Player) {
    switch($cmd->getName()) {
      case "heal":
        $sender->setHealth(20);
      break;
    }
  } else {
    $sender->sendMessage("Command must be used in-game.");
  }
  return true;
}

Thanks for all the help guys ^^.

Break and return together are not good practice.