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widgets[ spl_object_hash( $widget ) ] = $widget; } else { $this->widgets[ $widget ] = new $widget(); } } /** * Un-registers a widget subclass. * * @since 2.8.0 * @since 4.6.0 Updated the `$widget` parameter to also accept a WP_Widget instance object * instead of simply a `WP_Widget` subclass name. * * @param string|WP_Widget $widget Either the name of a `WP_Widget` subclass or an instance of a `WP_Widget` subclass. */ public function unregister( $widget ) { if ( $widget instanceof WP_Widget ) { unset( $this->widgets[ spl_object_hash( $widget ) ] ); } else { unset( $this->widgets[ $widget ] ); } } /** * Serves as a utility method for adding widgets to the registered widgets global. * * @since 2.8.0 * * @global array $wp_registered_widgets */ public function _register_widgets() { global $wp_registered_widgets; $keys = array_keys( $this->widgets ); $registered = array_keys( $wp_registered_widgets ); $registered = array_map( '_get_widget_id_base', $registered ); foreach ( $keys as $key ) { // Don't register new widget if old widget with the same id is already registered. if ( in_array( $this->widgets[ $key ]->id_base, $registered, true ) ) { unset( $this->widgets[ $key ] ); continue; } $this->widgets[ $key ]->_register(); } } }