WP_Customize_Control::__construct( WP_Customize_Manager $manager, string $id, array $args = array() )

In this article



Supplied $args override class property defaults.

If $args['settings'] is not defined, use the $id as the setting ID.


Customizer bootstrap instance.
Control ID.
Array of properties for the new Control object.
  • instance_number int
    Order in which this instance was created in relation to other instances.
  • manager WP_Customize_Manager
    Customizer bootstrap instance.
  • id string
    Control ID.
  • settings array
    All settings tied to the control. If undefined, $id will be used.
  • setting string
    The primary setting for the control (if there is one).
    Default 'default'.
  • capability string
    Capability required to use this control. Normally this is empty and the capability is derived from $settings.
  • priority int
    Order priority to load the control. Default 10.
  • section string
    Section the control belongs to.
  • label string
    Label for the control.
  • description string
    Description for the control.
  • choices array
    List of choices for 'radio' or 'select' type controls, where values are the keys, and labels are the values.
  • input_attrs array
    List of custom input attributes for control output, where attribute names are the keys and values are the values. Not used for 'checkbox', 'radio', 'select', 'textarea', or 'dropdown-pages' control types.
  • allow_addition bool
    Show UI for adding new content, currently only used for the dropdown-pages control. Default false.
  • json array
    Deprecated. Use WP_Customize_Control::json() instead.
  • type string
    Control type. Core controls include 'text', 'checkbox', 'textarea', 'radio', 'select', and 'dropdown-pages'. Additional input types such as 'email', 'url', 'number', 'hidden', and 'date' are supported implicitly. Default 'text'.
  • active_callback callable
    Active callback.



public function __construct( $manager, $id, $args = array() ) {
	$keys = array_keys( get_object_vars( $this ) );
	foreach ( $keys as $key ) {
		if ( isset( $args[ $key ] ) ) {
			$this->$key = $args[ $key ];

	$this->manager = $manager;
	$this->id      = $id;
	if ( empty( $this->active_callback ) ) {
		$this->active_callback = array( $this, 'active_callback' );
	self::$instance_count += 1;
	$this->instance_number = self::$instance_count;

	// Process settings.
	if ( ! isset( $this->settings ) ) {
		$this->settings = $id;

	$settings = array();
	if ( is_array( $this->settings ) ) {
		foreach ( $this->settings as $key => $setting ) {
			$settings[ $key ] = $this->manager->get_setting( $setting );
	} elseif ( is_string( $this->settings ) ) {
		$this->setting       = $this->manager->get_setting( $this->settings );
		$settings['default'] = $this->setting;
	$this->settings = $settings;



User Contributed Notes

You must log in before being able to contribute a note or feedback.