NBT

Can anyone tutorial me how did i can create a Entity like a player or an mob , i dont understand the nbt thing what it is and why "nbt", please a code and comment them xD that would be nice ^^

Look in the slapper plugin. It helps.

And My Tnt Plugin
It helps.

Just look at the Entity.php in the pocketmine source code, or even the slapper plugin.
Anyways, this is how to spawn an entity:

PHP:

public static function createEntity($type, Position $source, ...$args){
        $chunk = $source->getLevel()->getChunk($source->x >> 4, $source->z >> 4, true);
        if($chunk == null) return null;
        if(!$chunk->isLoaded()) $chunk->load();
        if(!$chunk->isGenerated()) $chunk->setGenerated();
        if(!$chunk->isPopulated()) $chunk->setPopulated();
        $nbt = new Compound("", [
            "Pos" => new Enum("Pos", [
                new Double("", $source->x),
                new Double("", $source->y),
                new Double("", $source->z)
            ]),
            "Motion" => new Enum("Motion", [
                new Double("", 0),
                new Double("", 0),
                new Double("", 0)
            ]),
            "Rotation" => new Enum("Rotation", [
                new Float("", $source instanceof Location ? $source->yaw : 0),
                new Float("", $source instanceof Location ? $source->pitch : 0)
            ]),
        ]);
        $keys = array_keys(self::$knownEntities);
        foreach($keys as $c => $name){
            if(strtolower($type) == strtolower($name)){
                $type = $name;
                break;
            }
        }
        if(isset(self::$knownEntities[$type])){
            $class = self::$knownEntities[$type];
            /** @var BaseEntity $entity */
            $entity =  new $class($chunk, $nbt, ...$args);
            if($entity != null && $entity->isCreated()) $entity->spawnToAll();
            return $entity;
        }else{
            $entity = Entity::createEntity($type, $chunk, $nbt, ...$args);
            if($entity != null) $entity->spawnToAll();
            return $entity;
        }
    }

Hmm nice but can i use AS type a Human? So a statue? Of a player ?

Yes