Unable to KnockBack more than 1 player.

I have a code that (should) set all the players in a given area to be knocked back, if one of the players interact with a clay item (ID: 337). It works, but doesn't work. It only knocks back one player per use.
I need to make it knock back all the players (except the one using it) in the given area.

Suggestion: It's probably something with the knockBack() function. Im messing up somewhere. Please give me a way to do the same thing, but with the setMotion() function.

Thanks <3

Da Code:

PHP:

<?php

namespace Core\Events;

use pocketmine\{item\Item, event\player\PlayerInteractEvent, Server, Player, math\AxisAlignedBB, network\mcpe\protocol\LevelEventPacket, level\Level, level\particle\HugeExplodeParticle, level\sound\LaunchSound};

class SpecialItems extends \Core\BaseFiles\BaseEvent {

   /**
     * @priority HIGH
     */

    public function onInteract(PlayerInteractEvent $event) {
        $player = $event->getPlayer();
        $inv = $player->getInventory();
        $item = $inv->getItemInHand();
        $iname = $item->getName();
        $ak = Server::getInstance()->getPluginManager()->getPlugin("AdvancedKits");
        if ($item->getId() === 337) {
            $kit = $ak->getPlayerKit($player, false);
            if (isset($ak->hasKit[strtolower($player->getName())])) {
//                if (Loader::getInstance()->getAreas()->isInAnyArena($player)) {
                    $targets = ($lvl = $player->getLevel())->getNearByEntities(new AxisAlignedBB($player->getX() - 8, $player->getY() - 8, $player->getZ() - 8, $player->getX() + 8, $player->getY() + 8, $player->getZ() + 8));
                    foreach ($targets as $target) {
                        if ($target instanceof Player && $target->getName() !== $player->getName()) {
                            $target->knockBack($player, 3, $target->x - $player->x, $target->z - $player->z, 1.4);
                            foreach ([
                                $player->getY() + 3,
                                $player->getY() + 4,
                                $player->getY() + 5,
                                $player->getY() + 6
                            ] as $y) {
                                foreach ([
                                    $player->getX() - 1, $player->getX() - 2, $player->getX() - 3,
                                    $player->getX() + 1, $player->getX() +2, $player->getX() + 3
                                ] as $x) {
                                    foreach ([
                                        $player->getZ() - 1, $player->getZ() - 2, $player->getZ() - 3,
                                        $player->getZ() + 1, $player->getZ() + 2, $player->getZ() + 3
                                    ] as $z) {
                                        $lvl->addParticle(new HugeExplodeParticle(new \pocketmine\math\Vector3($x, $y, $z)));
                                    }
                                }
                            }
                            $lvl->addSound(new LaunchSound($player->getLocation()), [$player, $target]);
   //                         $inv->removeItem(Item::CLAYBLAHBLAHBLAH WILL DO LATER
//                        }
                    }
                }
            }
        }
    }
}
?>



Spoiler

PLEASE HAAAAALP!!! ;-;

 

Ummmm.... Does no one know the code to Knockback a player using setMotion()?

T_T

 

I should read the API docs more. Thanks SOFe