code not responding in any way

I have this code:

PHP:

  public function BlockPlace(BlockPlaceEvent $event){
      {
          $player = $event->getPlayer();
          if($player->isOp()){
          $level = $this->getServer()->getDefaultLevel();
          $startingx = 31;
          $endingx = 52;
          $startingy = 122;
          $endingy = 133;
          $startingz = -886;
          $endingz = -903;
          for($x = $startingx; $x < $endingx; $x++){
              for($z = $startingz; $z < $endingz; $z++){
                  for($y = $startingy; $y < $endingy; $y++){
                      if($level->getBlock(new Vector3($x, $y, $z))->getId() === 5){
                          $level->setBlock(new Vector3($x, $y, $z), Block::get(Block::AIR));


so yeah you can see what I'm trying to do but when a player places a block nothing happens to the wood blocks in that selected area. I don't even get an error message in the console

 

Is your class registered as a listener?

 

Oh no, how would this look?

 

Might it be because all the position have nothing to do with the actual event. I mean I haven't used $event->getBlock(); anywhere

 

Yes I know I've done this as a test. I plan to add this to a game and it will have nothing to do with placing a block to make it work. It'll work if the game timer is at 0 and I think setting block update to 'false, false' will avoid lag when setting block..?

 

PHP:

$this->getServer()->getPluginManager()->registerEvents($this, $this);

That will work if the function is in your main class.