changed pollForMessages() impl

src/Meshcore.php

@@ -301,26 +301,33 @@ class Meshcore {
     }
 
     /**
+     * Poll for messages, returning after timeout or if a message with <tag> is received.  This function can 
+     * return zero to many results in an array.  Not all messages may match <tag>.
      * 
      * @param string $tag 
-     * @param int $timeout_ms 
-     * @return mixed 
+     * @param int $timeout_ms defaults to 5 seconds
+     * @return array 
      */
-    public function pollForMessage(string $tag, int $timeout_ms = 5000): mixed {
+    public function pollForMessage(string $tag, int $timeout_ms = 5000): array {
         $mark = time();
+        $messages = [];
 
         do {
             $msg = self::getNextMessage();
 
+            if( $msg instanceof BinaryResponse ) {
+                $messages[] = $msg;
+            }
+
             if( $msg instanceof BinaryResponse && $msg->tag == $tag ) {
-                return $msg;
+                return $messages;
             }
 
             usleep(500000);
         }
         while( ((time() - $mark) * 1000) < $timeout_ms );
 
-        return false;
+        return $messages;
     }
 
 }