Here is a list of all documented functions with links to the class documentation for each member:

- u -

• unblockAddress() : pocketmine\network\AdvancedNetworkInterface, pocketmine\network\mcpe\raklib\RakLibInterface, pocketmine\network\query\DedicatedQueryNetworkInterface
• unloadWorld() : pocketmine\world\WorldManager
• unlockChunk() : pocketmine\world\World
• unregister() : pocketmine\event\HandlerList, pocketmine\item\enchantment\IncompatibleEnchantmentRegistry
• unregisterAll() : pocketmine\event\HandlerListManager, pocketmine\item\enchantment\IncompatibleEnchantmentRegistry
• unregisterChunkListener() : pocketmine\world\World
• unregisterChunkListenerFromAll() : pocketmine\world\World
• unregisterInterface() : pocketmine\network\Network
• unregisterRawPacketHandler() : pocketmine\network\Network
• unregisterTickingChunk() : pocketmine\world\World
• unsetBasePermission() : pocketmine\permission\Permissible, pocketmine\permission\PermissibleInternal
• unsetPermissions() : pocketmine\permission\PermissionAttachment
• unshift() : pocketmine\nbt\tag\ListTag
• unsubscribeFromAllBroadcastChannels() : pocketmine\Server
• unsubscribeFromAllPermissions() : pocketmine\permission\PermissionManager
• unsubscribeFromBroadcastChannel() : pocketmine\Server
• unsubscribeFromPermission() : pocketmine\permission\PermissionManager
• unused() : pocketmine\data\bedrock\block\convert\property\BoolProperty, pocketmine\data\bedrock\block\convert\property\IntProperty
• up() : pocketmine\math\Vector3
• updateFaceText() : pocketmine\block\BaseSign
• upgrade() : pocketmine\data\bedrock\item\upgrade\ItemIdMetaUpgrader
• upgradeBlockStateNbt() : pocketmine\data\bedrock\block\upgrade\BlockDataUpgrader
• upgradeIntIdMeta() : pocketmine\data\bedrock\block\upgrade\BlockDataUpgrader
• upgradeItemStackNbt() : pocketmine\data\bedrock\item\upgrade\ItemDataUpgrader
• upgradeItemTypeDataInt() : pocketmine\data\bedrock\item\upgrade\ItemDataUpgrader
• upgradeItemTypeDataString() : pocketmine\data\bedrock\item\upgrade\ItemDataUpgrader
• upgradeStringIdMeta() : pocketmine\data\bedrock\block\upgrade\BlockDataUpgrader
• useBlock() : pocketmine\event\player\PlayerInteractEvent
• useBreakOn() : pocketmine\world\World
• useHeldItem() : pocketmine\player\Player
• useItem() : pocketmine\event\player\PlayerInteractEvent
• useItemOn() : pocketmine\world\World