Help, I am confused with this error.

the error is a syntax error "public" not expected, expected "," or ";" on line 20

here is the code...

<?php

namespace KnockbackM;

use pocketmine\event\Event;
use pocketmine\event\entity\EntityDamageByEntityEvent;
use pocketmine\event\entity\EntityDamageEvent;
use pocketmine\Server;
use pocketmine\Player;
use pocketmine\PluginBase;
use pocketmine\event\Listener;


class Main extends PluginBase implements Listener{

public function onEnable() {
$this->getServer()->getPluginManager()->registerEvents($this,$this);
}
19 - public $knockback = 0.4
20 - public function onCommand(Command $cmd, CommandSender $sender, array $args, $label) {
if($cmd->getName() == "kb"{$event->setKnockback($args[0]));
$sender->sendMessage(c::RED. "Knockback Set!"
}
}



public function onDamage(EntityDamageEvent $event) {
if($event instanceof EntityDamageByEntityEvent){
$event->setKnockback();

}
}
}

 

no have a ";" in line 19.

 

Now I have this error on line 22
"Unexpected ")" on line 22"
22 - if($cmd->getName() == "kb"{$event->setKnockback($args[0]));


any idea? Im sure there is no unexpected ")"

 

Here, I fixed your syntax, but please, learn the php syntax:

PHP:

<?php
namespace KnockbackM;
use pocketmine\event\Event;
use pocketmine\event\entity\EntityDamageByEntityEvent;
use pocketmine\event\entity\EntityDamageEvent;
use pocketmine\Server;
use pocketmine\Player;
use pocketmine\PluginBase;
use pocketmine\event\Listener;

class Main extends PluginBase implements Listener{
  public function onEnable() {
    $this->getServer()->getPluginManager()->registerEvents($this,$this);
  }

  public $knockback = 0.4;

  public function onCommand(Command $cmd, CommandSender $sender, array $args, $label) {
    if($cmd->getName() == "kb") {
      $event->setKnockback($args[0]);
      $sender->sendMessage(c::RED . "Knockback Set!");
    }
  }

  public function onDamage(EntityDamageEvent $event) {
    if($event instanceof EntityDamageByEntityEvent){
      $event->setKnockback();
    }
  }
}

 

You didn't fix that Either import TextFormat as c (for whatever reason) or import TextFormat and change it to TextFormat::RED