implemented reading multi-packet responses

Author: piotrskibapl

src/Rcon.php

@@ -26,6 +26,7 @@ class Rcon
 
     const PACKET_AUTHORIZE = 5;
     const PACKET_COMMAND = 6;
+    const PACKET_COMMAND_ENDING = 7;
 
     const SERVERDATA_AUTH = 3;
     const SERVERDATA_AUTH_RESPONSE = 2;
@@ -117,15 +118,21 @@ public function sendCommand($command)
         // send command packet
         $this->writePacket(self::PACKET_COMMAND, self::SERVERDATA_EXECCOMMAND, $command);
 
+		// send additional packet to determine last response packet later
+        $this->writePacket(self::PACKET_COMMAND_ENDING, self::SERVERDATA_EXECCOMMAND, 'ping');
+
         // get response
+		$response = '';
         $response_packet = $this->readPacket();
-        if ($response_packet['id'] == self::PACKET_COMMAND) {
-            if ($response_packet['type'] == self::SERVERDATA_RESPONSE_VALUE) {
-                $this->lastResponse = $response_packet['body'];
-
-                return $response_packet['body'];
-            }
+        while ($response_packet['id'] == self::PACKET_COMMAND && $response_packet['type'] == self::SERVERDATA_RESPONSE_VALUE) {
+			$response .= $response_packet['body'];
+			$response_packet = $this->readPacket();
         }
+		$response = substr($response, 0, -3);
+		if ($response != '') {
+			$this->lastResponse = $response_packet['body'];
+			return $response;
+		}
 
         return false;
     }