WP_Widget::_register_one( integer $number = -1 )

Registers an instance of the widget class.

Parameters

$number

(integer) (Optional) The unique order number of this widget instance compared to other instances of the same class.

Default value: -1

Source

File: wp-includes/class-wp-widget.php 

	public function _register_one( $number = -1 ) {
		wp_register_sidebar_widget(	$this->id, $this->name,	$this->_get_display_callback(), $this->widget_options, array( 'number' => $number ) );
		_register_widget_update_callback( $this->id_base, $this->_get_update_callback(), $this->control_options, array( 'number' => -1 ) );
		_register_widget_form_callback(	$this->id, $this->name,	$this->_get_form_callback(), $this->control_options, array( 'number' => $number ) );
	}

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Related

Uses

Uses
Uses Description
wp-includes/class-wp-widget.php: WP_Widget::_get_display_callback()

Retrieves the widget display callback.
wp-includes/class-wp-widget.php: WP_Widget::_get_update_callback()

Retrieves the widget update callback.
wp-includes/class-wp-widget.php: WP_Widget::_get_form_callback()

Retrieves the form callback.
wp-includes/widgets.php: _register_widget_update_callback()

Registers the update callback for a widget.
wp-includes/widgets.php: _register_widget_form_callback()

Registers the form callback for a widget.
wp-includes/widgets.php: wp_register_sidebar_widget()

Register an instance of a widget.
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Used By

Used By
Used By Description
wp-includes/widgets/class-wp-widget-text.php: WP_Widget_Text::_register_one()

Add hooks for enqueueing assets when registering all widget instances of this widget class.
wp-includes/widgets/class-wp-widget-custom-html.php: WP_Widget_Custom_HTML::_register_one()

Add hooks for enqueueing assets when registering all widget instances of this widget class.
wp-includes/widgets/class-wp-widget-media.php: WP_Widget_Media::_register_one()

Add hooks while registering all widget instances of this widget class.
wp-includes/class-wp-widget.php: WP_Widget::_register()

Register all widget instances of this widget class.

Changelog

Changelog
Version Description
WP-2.8.0 Introduced.