PHP 8

composer.json

@@ -23,7 +23,7 @@
     }
   ],
   "require": {
-    "php": "^5.5|^7.0",
+    "php": "^5.5|^7.0|^8.0",
     "ext-sockets": "*"
   },
   "require-dev": {

src/Connection.php

@@ -12,6 +12,7 @@
 
 use InvalidArgumentException;
 use RuntimeException;
+use Socket;
 
 /**
  * This class represent single connection
@@ -35,7 +36,7 @@ class Connection
     /**
      * Socket handle
      *
-     * @var resource
+     * @var Socket|resource
      */
     protected $socket;
 
@@ -106,7 +107,7 @@ public function setTimeout($seconds)
      */
     private function setTimeoutOption($seconds = 1, $microseconds = 0)
     {
-        if (!is_resource($this->socket)) {
+        if (!is_resource($this->socket) && !$this->socket instanceof Socket) {
             throw new RuntimeException('Socket handle is not valid');
         }
 
@@ -132,7 +133,7 @@ public function connect()
 
         $this->socket = @socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
 
-        if (!is_resource($this->socket)) {
+        if (!is_resource($this->socket) && !$this->socket instanceof Socket) {
             throw new RuntimeException('Unable to create socket: ' . socket_strerror(socket_last_error()));
         }
 
@@ -252,7 +253,7 @@ public function __destruct()
      */
     public function close()
     {
-        if (is_resource($this->socket)) {
+        if (is_resource($this->socket) || $this->socket instanceof Socket) {
             return @socket_close($this->socket);
         }
 

src/MasterServer.php

@@ -108,6 +108,10 @@ private function parseData($data)
     {
         $servers = [];
 
+        if (empty($data)) {
+            return $servers;
+        }
+
         for ($i = 0; $i < (strlen($data) - 10); $i++) {
             if ($data[$i] === "\\" && $data[$i + 7] === "\\") {
                 $ip   = ord($data[$i + 1]) . '.' . ord($data[$i + 2]) . '.' . ord($data[$i + 3]) . '.' . ord($data[$i + 4]);