setArmorContents()

So, I was adding enchants to my Kohi 1vs1 duel plugin. Here is code w/o enchants;

PHP:

        $player->getInventory()->setHelmet(Item::get(310, 0, 1));
        $player->getInventory()->setChestplate(Item::get(311, 0, 1));
        $player->getInventory()->setLeggings(Item::get(312, 0, 1));
        $player->getInventory()->setBoots(Item::get(313, 0, 1));
        $player->getInventory()->sendArmorContents($player);


This worked fine, with $player in the brackets of sendArmorContents... But now;

PHP:

$enchantment = Enchantment::getEnchantment(0);
        $enchantment->setLevel(1);
        $helmet = Item::get(310,0,1);
        $chestplate = Item::get(311,0,1);
        $leggings = Item::get(312,0,1);
        $boots = Item::get(313,0,1);
        $helmet->addEnchantment($enchantment);
        $chestplate->addEnchantment($enchantment);
        $leggings->addEnchantment($enchantment);
        $boots->addEnchantment($enchantment);
     $player->getInventory()->setHelmet($helmet);
        $player->getInventory()->setChestplate($chestplate);
        $player->getInventory()->setLeggings($leggings);
        $player->getInventory()->setBoots($boots);
        $player->getInventory()->sendArmorContents($helmet,$chestplate,$leggings,$boots);

It only gives the armour and contents to one of the players, I would be really grateful if someone helped me. :£

 

PHP:

$player->getInventory()->setArmorContents([$helmet, $chestplate, $leggings, $boots]);
$player->getInventory()->sendArmorContents($player);