diff --git a/src/dependencies.php b/src/dependencies.php
index 2eae613a1..f6c908e5d 100644
--- a/src/dependencies.php
+++ b/src/dependencies.php
@@ -108,6 +108,7 @@ foreach($inc as $s){
 	$sha1sum ^= sha1_file($s, true);
 }
 /***REM_END***/
+ini_set("opcache.mmap_base", bin2hex(Utils::getRandomBytes(8, false))); //Fix OPCache address errors
 define("SOURCE_SHA1SUM", bin2hex($sha1sum));
 
 /***REM_START***/
diff --git a/src/network/raknet/RakNetDataPacket.php b/src/network/raknet/RakNetDataPacket.php
index 9dc5f0d3d..b0af51c95 100644
--- a/src/network/raknet/RakNetDataPacket.php
+++ b/src/network/raknet/RakNetDataPacket.php
@@ -56,12 +56,15 @@ abstract class RakNetDataPacket extends stdClass{
 		if($len <= 0){
 			$this->offset = strlen($this->buffer) - 1;
 			return "";
-		}
-		if($len === true){
+		}elseif($len === true){
 			return substr($this->buffer, $this->offset);
 		}
-		$this->offset += $len;
-		return substr($this->buffer, $this->offset - $len, $len);
+		
+		$buffer = b"";
+		for(; $len > 0; --$len, ++$this->offset){
+			$buffer .= $this->buffer{$this->offset};
+		}
+		return $buffer;
 	}
 	
 	protected function put($str){
@@ -118,7 +121,7 @@ abstract class RakNetDataPacket extends stdClass{
 	}
 	
 	protected function getByte(){
-		return ord($this->get(1));
+		return ord($this->buffer{$this->offset++});
 	}
 	
 	protected function putByte($v){
diff --git a/src/network/raknet/RakNetPacket.php b/src/network/raknet/RakNetPacket.php
index 70b560df9..87ea11768 100644
--- a/src/network/raknet/RakNetPacket.php
+++ b/src/network/raknet/RakNetPacket.php
@@ -31,17 +31,20 @@ class RakNetPacket extends Packet{
 	public function pid(){
 		return $this->packetID;
 	}
-	
-	private function get($len){
+		
+	protected function get($len){
 		if($len <= 0){
 			$this->offset = strlen($this->buffer) - 1;
 			return "";
-		}
-		if($len === true){
+		}elseif($len === true){
 			return substr($this->buffer, $this->offset);
 		}
-		$this->offset += $len;
-		return substr($this->buffer, $this->offset - $len, $len);
+		
+		$buffer = b"";
+		for(; $len > 0; --$len, ++$this->offset){
+			$buffer .= $this->buffer{$this->offset};
+		}
+		return $buffer;
 	}
 	
 	private function getLong($unsigned = false){
@@ -61,7 +64,7 @@ class RakNetPacket extends Packet{
 	}
 	
 	private function getByte(){
-		return ord($this->get(1));
+		return ord($this->buffer{$this->offset++});
 	}	
 	
 	private function feof(){