+ global $wgFeedLimit;
+
+ $this->getOptions()->validateIntBounds( 'limit', 0, $wgFeedLimit );
+ $options = $this->getOptions()->getChangedValues();
+
+ // wfArrayToCgi() omits options set to null or false
+ foreach ( $options as &$value ) {
+ if ( $value === false ) {
+ $value = '0';
+ }
+ }
+ unset( $value );
+
+ return wfArrayToCgi( $options );