Snow bug help

PHP:

public function onChunkLoadEvent(ChunkLoadEvent $event) {
        for($x = 0; $x < 20; ++ $x)
            for($z = 0; $z < 20; ++ $z)
                $event->getChunk ()->setBiomeId ( $x, $z, Biome::ICE_PLAINS);
    }
public function onPlayerJoinEvent(PlayerJoinEvent $event) {
        $player = $event->getPlayer ();
        $pk = new LevelEventPacket ();
        $pk->evid = 3001;
        $pk->data = 10000;
        $player->dataPacket ( $pk );

in the server when it is low of coordinates it does not snow with this code...

See this: https://drive.google.com/open?id=1AIFwE1mbX-cmGL-kXTKwMnNKXgy12lFK

 

setting the biome only changes it on the server
you have to resend the chunks to the client.

 

what is teh code for this?

 

Look how this plugin does it instead, it manages to do it without manipulating the chunk: https://forums.pmmp.io/threads/snow.8860/#post-67954