Select a random word?

I want to select a random word and then have that word named on to an item. I have code but it doesnt do anything, no errors nothing.
CODE:
$words = array("lit", "poptart", "dog");
$name = array_rand($words);
$book = Item::get(Item::BOOK, 0, 1);
$book->setCustomName($name);

 

random world from all worlds in worlds folder or from all loaded levels?

 

You have nothing to give the item to a player. You should do something like: $player->getInventory()->addItem($book);

 

I already did that, i was giving the code that for the word, the full code is

PHP:

<?php

namespace CustomItemsEnchantments;

use pocketmine\event\Listener;
use pocketmine\event\entity\{EntityArmorChangeEvent, EntityDamageByEntityEvent, EntityDamageEvent};
use pocketmine\event\player\PlayerInteractEvent;
use pocketmine\utils\TextFormat as c;
use pocketmine\level\sound\GhastSound;
use pocketmine\level\Level;
use pocketmine\level\sound;
use pocketmine\math\Vector3;
use pocketmine\level\Position;
use pocketmine\Server;
use pocketmine\entity\Effect;
use pocketmine\level\particle\FlameParticle;
use pocketmine\level\sound\BlazeShootSound;
use pocketmine\item\Item;
use pocketmine\Player;
use pocketmine\utils\Config;

class BookOfKnowledge implements Listener{
    
      public function __construct(Loader $plugin){
          $this->plugin = $plugin;
    }
 
    public function onTap(PlayerInteractEvent $e) {
        $player = $e->getPlayer();
        $item = $player->getInventory()->getItemInHand();
        $slot = $player->getInventory()->getHeldItemSlot();
        $words = array("lit", "poptart", "dog");
        $name = array_rand($words);
        $book = Item::get(Item::BOOK, 0, 1);
        if($item->getId() === 280 and $item->getCustomName() === "TEST"){
          $player->sendMessage("You discover a random enchantment...");
          $item->setCount($item->getCount() - 1);
          $player->getInventory()->clear($slot);
          $player->getInventory()->setItem($slot, $item);
          $player->sendMessage("You discover a random enchantment...");
          $player->getInventory()->addItem($book);
            $book->setCustomName($name);
      }
    }
  }

 

I said "WORD" not "WORLD"

 

sorry i read 'world' instead of 'word' xD

 

array_rand returns a random index, not a value.

Observe:

PHP:

$words = ["lit", "poptart", "dog"];
$name = $words[array_rand($words)];
$book = Item::get(Item::BOOK, 0, 1);
$book->setCustomName($name);


 

array_rand() returns weird (often the same in a row) results, look it up on php.net, I'd recommend to use

PHP:

$arr = ["a", "b", "c"];
$letter = $arr[mt_rand(0, count($arr)-1)];