pocketmine\command\CommandExecutor::onCommand PHP Method

    public function onCommand(CommandSender $sender, Command $command, $label, array $args);

 public function execute(CommandSender $sender, $commandLabel, array $args)
 {
     if (!$this->owningPlugin->isEnabled()) {
         return \false;
     }
     if (!$this->testPermission($sender)) {
         return \false;
     }
     $success = $this->executor->onCommand($sender, $this, $commandLabel, $args);
     if (!$success and $this->usageMessage !== "") {
         $sender->sendMessage(TextFormat::RED . "Usage: " . $this->usageMessage);
     }
     return $success;
 }