diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index b3c96a225..ef320dd60 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -2680,6 +2680,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 				if($recipe instanceof ShapedRecipe){
 					for($x = 0; $x < 3 and $canCraft; ++$x){
 						for($y = 0; $y < 3; ++$y){
+							/** @var Item $item */
 							$item = $packet->input[$y * 3 + $x];
 							$ingredient = $recipe->getIngredient($x, $y);
 							if($item->getCount() > 0){
@@ -2695,6 +2696,7 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 
 					for($x = 0; $x < 3 and $canCraft; ++$x){
 						for($y = 0; $y < 3; ++$y){
+							/** @var Item $item */
 							$item = clone $packet->input[$y * 3 + $x];
 
 							foreach($needed as $k => $n){
@@ -2946,7 +2948,8 @@ class Player extends Human implements CommandSender, InventoryHolder, ChunkLoade
 					break;
 				}
 
-				if(($tile = $this->level->getTile($this->temporalVector->setComponents($packet->x, $packet->y, $packet->z))) instanceof ItemFrame){
+				$tile = $this->level->getTile($this->temporalVector->setComponents($packet->x, $packet->y, $packet->z));
+				if($tile instanceof ItemFrame){
 					if(!$tile->getItem()->equals($packet->item) and !$this->isCreative(true)){
 						$tile->spawnTo($this);
 						break;
diff --git a/src/pocketmine/block/BurningFurnace.php b/src/pocketmine/block/BurningFurnace.php
index 6ed6cbbaa..6c056165c 100644
--- a/src/pocketmine/block/BurningFurnace.php
+++ b/src/pocketmine/block/BurningFurnace.php
@@ -101,7 +101,8 @@ class BurningFurnace extends Solid{
 
 	public function onActivate(Item $item, Player $player = null){
 		if($player instanceof Player){
-			if(!(($furnace = $this->getLevel()->getTile($this)) instanceof TileFurnace)){
+			$furnace = $this->getLevel()->getTile($this);
+			if(!($furnace instanceof TileFurnace)){
 				$nbt = new CompoundTag("", [
 					new ListTag("Items", []),
 					new StringTag("id", Tile::FURNACE),
diff --git a/src/pocketmine/block/ItemFrame.php b/src/pocketmine/block/ItemFrame.php
index 0610d5dac..b78ad8fa8 100644
--- a/src/pocketmine/block/ItemFrame.php
+++ b/src/pocketmine/block/ItemFrame.php
@@ -46,7 +46,8 @@ class ItemFrame extends Flowable{
 	}
 
 	public function onActivate(Item $item, Player $player = null){
-		if(!(($tile = $this->level->getTile($this)) instanceof TileItemFrame)){
+		$tile = $this->level->getTile($this);
+		if(!($tile instanceof TileItemFrame)){
 			$nbt = new CompoundTag("", [
 				new StringTag("id", Tile::ITEM_FRAME),
 				new IntTag("x", $this->x),
@@ -76,7 +77,8 @@ class ItemFrame extends Flowable{
 	}
 
 	public function onBreak(Item $item){
-		if(($tile = $this->level->getTile($this)) instanceof TileItemFrame){
+		$tile = $this->level->getTile($this);
+		if($tile instanceof TileItemFrame){
 			//TODO: add events
 			if(lcg_value() <= $tile->getItemDropChance() and $tile->getItem()->getId() !== Item::AIR){
 				$this->level->dropItem($tile->getBlock(), $tile->getItem());
diff --git a/src/pocketmine/block/MobHead.php b/src/pocketmine/block/MobHead.php
index a84ca2caa..0aafffa5a 100644
--- a/src/pocketmine/block/MobHead.php
+++ b/src/pocketmine/block/MobHead.php
@@ -107,7 +107,8 @@ class MobHead extends Flowable{
 	}
 
 	public function getDrops(Item $item){
-		if(($tile = $this->level->getTile($this)) instanceof SkullTile){
+		$tile = $this->level->getTile($this);
+		if($tile instanceof SkullTile){
 			return [
 				[Item::MOB_HEAD, $tile->getType(), 1]
 			];