Fix deprecation warning for PHP 8.2+.

Fix Creation of dynamic property deprecation warning for PHP 8.2+.

Author: ip2location

src/WebService.php

@@ -27,6 +27,10 @@ class WebService
 	 * @var int
 	 */
 	private const EXCEPTION_WEB_SERVICE_ERROR = 10003;
+	
+	private $apiKey;
+	private $package;
+	private $useSsl;
 
 	/**
 	 * Constructor.