Hello guys, right now Im in the process of converting my mcpe map to pmmp map, but I don't know what kind of storage (database) pmmp uses... Is it anvil, mcregion or any other??? Im using the api 3
PocketMine can use Anvil, MCRegion and PMAnvil. (which is a 'modified' anvil that works a lot faster) Using the right extension you can kind of make Leveldb work too, but I wouldn't recommend it yet, as it isn't super stable.
This list is sorted by what you should use vs. what you shouldn't use pmanvil (slightly modified anvil, pretty fast due to not needing to reorder to XZY) leveldb (mcpe save format, not stable yet and you need an extension) anvil (slow due to reordering from XYZ to XZY) mcregion (only 128 build height)
Dktapps' chunkutils is a PHP extension that cuts lag massively in Anvil worlds: https://github.com/dktapps/PocketMine-C-ChunkUtils