clear a person inv?

Whats the code to clear a persons inv? Thanks..
-Xfusionios

Use

PHP:

      public function inventoryClean($cmd, $params, $issuer, $alias, $args, $issuer)
      {
         $username = $params[0];
         if($username === '' && $username === null)
            return "use /inventory clean ";

         $player = $this->api->player->get($username);
         if(! ($player instanceof Player) and ! ($player->entity instanceof Entity)) {
return "player not found.";
         }
         $player->inventory = array();
         $player->sendInventory();
      }

      

The instanceof line should be or not and.