Some fixes, thanks PhpStorm

src/pocketmine/level/format/Chunk.php

@@ -61,6 +61,7 @@ interface Chunk{
 	 * @return int
 	 */
 	public function getHeight() : int;
+
 	/**
 	 * Gets block and meta in one go
 	 *
@@ -324,6 +325,7 @@ interface Chunk{
 	/**
 	 * @param int      $fY 0-15
 	 * @param SubChunk $subChunk
+	 * @param bool     $allowEmpty
 	 *
 	 * @return bool
 	 */
@@ -337,7 +339,7 @@ interface Chunk{
 	/**
 	 * Returns the index of the highest non-empty subchunk
 	 *
-	 * @return bool
+	 * @return int
 	 */
 	public function getHighestSubChunkIndex() : int;
 
@@ -363,6 +365,8 @@ interface Chunk{
 	/**
 	 * Serializes a chunk without compression for use in AsyncTasks.
 	 *
+	 * @param Chunk $chunk
+	 *
 	 * @return string
 	 */
 	public static function fastSerialize(Chunk $chunk) : string;

src/pocketmine/level/format/LevelProvider.php

@@ -109,6 +109,8 @@ interface LevelProvider{
 	/**
 	 * @param int $chunkX
 	 * @param int $chunkZ
+	 *
+	 * @return bool
 	 */
 	public function saveChunk(int $chunkX, int $chunkZ) : bool;
 

src/pocketmine/level/format/generic/GenericChunk.php

@@ -91,7 +91,7 @@ class GenericChunk implements Chunk{
 	 * @param CompoundTag[] $entities
 	 * @param CompoundTag[] $tiles
 	 * @param string        $biomeIds
-	 * @param int[256]      $heightMap
+	 * @param int[]         $heightMap
 	 */
 	public function __construct($provider, int $chunkX, int $chunkZ, array $subChunks = [], array $entities = [], array $tiles = [], string $biomeIds = "", array $heightMap = []){
 		$this->provider = $provider;
@@ -736,7 +736,7 @@ class GenericChunk implements Chunk{
 	/**
 	 * Converts pre-MCPE-1.0 biome colour array to biome ID array. RIP BiomeColors :(
 	 *
-	 * @param int[256] $array of biome colour values
+	 * @param int[] $array of biome colour values
 	 *
 	 * @return string
 	 */

src/pocketmine/level/format/region/Anvil.php

@@ -59,7 +59,7 @@ class Anvil extends McRegion{
 			}
 			$nbt->Sections[++$subChunks] = new CompoundTag(null, [
 				"Y"          => new ByteTag("Y", $y),
-				"Blocks"     => new ByteArrayTag("Blocks",     GenericChunk::reorderByteArray($subChunk->getBlockIdArray())), //Generic in-memory chunks are currrently always XZY
+				"Blocks"     => new ByteArrayTag("Blocks",     GenericChunk::reorderByteArray($subChunk->getBlockIdArray())), //Generic in-memory chunks are currently always XZY
 				"Data"       => new ByteArrayTag("Data",       GenericChunk::reorderNibbleArray($subChunk->getBlockDataArray())),
 				"SkyLight"   => new ByteArrayTag("SkyLight",   GenericChunk::reorderNibbleArray($subChunk->getSkyLightArray())),
 				"BlockLight" => new ByteArrayTag("BlockLight", GenericChunk::reorderNibbleArray($subChunk->getBlockLightArray()))