* like "subdir/foo.html", etc.
*
* @param string $url Either fully-qualified or a local path + query
- * @param string $defaultProto One of the PROTO_* constants. Determines the
+ * @param string|int|null $defaultProto One of the PROTO_* constants. Determines the
* protocol to use if $url or $wgServer is protocol-relative
* @return string|false Fully-qualified URL, current-path-relative URL or false if
* no valid URL can be constructed
* @see wfExpandUrl
* @param string|string[] $query
* @param string|string[]|bool $query2
- * @param string $proto Protocol type to use in URL
+ * @param string|int|null $proto Protocol type to use in URL
* @return string The URL
*/
public function getFullURL( $query = '', $query2 = false, $proto = PROTO_RELATIVE ) {