WP_Customize_Manager::__construct( array $args = array() )

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$argsarrayoptional

Args.Default: array()

• $changeset_uuidnull|string|false

  Changeset UUID, the post_name for the customize_changeset post containing the customized state. Defaults to null resulting in a UUID to be immediately generated. If false is provided, then then the changeset UUID will be determined during after_setup_theme: when the customize_changeset_branching filter returns false, then the default UUID will be that of the most recent customize_changeset post that has a status other than 'auto-draft', 'publish', or 'trash'. Otherwise, if changeset branching is enabled, then a random UUID will be used.

• $themestring

  Theme to be previewed (for theme switch). Defaults to customize_theme or theme query params.

• $messenger_channelstring

  Messenger channel. Defaults to customize_messenger_channel query param.

• $settings_previewedbool

  If settings should be previewed. Defaults to true.

• $branchingbool

  If changeset branching is allowed; otherwise, changesets are linear. Defaults to true.

• $autosavedbool

  If data from a changeset's autosaved revision should be loaded if it exists. Defaults to false.

Performance profile

How much work a call to WP_Customize_Manager::__construct() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reads stored settings via get_option(), cached per request but not free on a cold cache.

Scaling

Scales with input

The body loops, so the work grows with what you pass in.

Instructions

407–456

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 490.

Plugin surface

1 hook

Third-party callbacks on 'customize_loaded_components' run inside this call, and their cost is not bounded by anything here.

Called by

2

2 places in core call this, so the cost is paid more often than your own code shows.

What it touches

• hookthird-party callbacksapply_filters()called directly
• optionoption read or writeget_option()one call below WP_Customize_Manager::__construct()

Further down the call graph this can also reach cache, serialize, transient and query. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 6 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Customize_Manager::__construct() can have, taken from its control-flow graph on PHP 8.5.

This body has more branch combinations than are worth enumerating, so the table covers the outcomes found first rather than every one that exists.

Hooks and filters fired · 1

One hook fires while WP_Customize_Manager::__construct() runs, in this order:

1. 1
   apply_filters( customize_loaded_components )filterline 359 (+97 into the body)

   Filters the core Customizer components to load.

Uses · 15

• wp_generate_uuid4()Generates a random UUID (version 4).
• wp_unslash()Removes slashes from a string or recursively removes slashes from strings within an array.
• sanitize_key()Sanitizes a string key.
• wp_is_block_theme()Returns whether the active theme is a block-based theme or not.
• get_stylesheet()Retrieves name of the current stylesheet.
• wp_get_theme()Gets a WP_Theme object for a theme.
• validate_file()Validates a file name and path against an allowed set of rules.
• apply_filters()Calls the callback functions that have been added to a filter hook.
• add_action()Adds a callback function to an action hook.
• remove_action()Removes a callback function from an action hook.
• add_filter()Adds a callback function to a filter hook.
• current_user_can()Returns whether the current user has the specified capability.

Used by · 2

• _wp_customize_include()Includes and instantiates the WP_Customize_Manager class.
• _wp_customize_publish_changeset()Publishes a snapshot's changes.

Source code

View on Trac ↗View on GitHub ↗

262	public function __construct( $args = array() ) {263 264		$args = array_merge(265			array_fill_keys( array( 'changeset_uuid', 'theme', 'messenger_channel', 'settings_previewed', 'autosaved', 'branching' ), null ),266			$args267		);268 269		// Note that the UUID format will be validated in the setup_theme() method.270		if ( ! isset( $args['changeset_uuid'] ) ) {271			$args['changeset_uuid'] = wp_generate_uuid4();272		}273 274		/*275		 * The theme and messenger_channel should be supplied via $args,276		 * but they are also looked at in the $_REQUEST global here for back-compat.277		 */278		if ( ! isset( $args['theme'] ) ) {279			if ( isset( $_REQUEST['customize_theme'] ) ) {280				$args['theme'] = wp_unslash( $_REQUEST['customize_theme'] );281			} elseif ( isset( $_REQUEST['theme'] ) ) { // Deprecated.282				$args['theme'] = wp_unslash( $_REQUEST['theme'] );283			}284		}285		if ( ! isset( $args['messenger_channel'] ) && isset( $_REQUEST['customize_messenger_channel'] ) ) {286			$args['messenger_channel'] = sanitize_key( wp_unslash( $_REQUEST['customize_messenger_channel'] ) );287		}288 289		// Do not load 'widgets' component if a block theme is activated.290		if ( ! wp_is_block_theme() ) {291			$this->components[] = 'widgets';292		}293 294		$this->original_stylesheet = get_stylesheet();295		$this->theme               = wp_get_theme( 0 === validate_file( $args['theme'] ) ? $args['theme'] : null );296		$this->messenger_channel   = $args['messenger_channel'];297		$this->_changeset_uuid     = $args['changeset_uuid'];298 299		foreach ( array( 'settings_previewed', 'autosaved', 'branching' ) as $key ) {300			if ( isset( $args[ $key ] ) ) {301				$this->$key = (bool) $args[ $key ];302			}303		}304 305		require_once ABSPATH . WPINC . '/class-wp-customize-setting.php';306		require_once ABSPATH . WPINC . '/class-wp-customize-panel.php';307		require_once ABSPATH . WPINC . '/class-wp-customize-section.php';308		require_once ABSPATH . WPINC . '/class-wp-customize-control.php';309 310		require_once ABSPATH . WPINC . '/customize/class-wp-customize-color-control.php';311		require_once ABSPATH . WPINC . '/customize/class-wp-customize-media-control.php';312		require_once ABSPATH . WPINC . '/customize/class-wp-customize-upload-control.php';313		require_once ABSPATH . WPINC . '/customize/class-wp-customize-image-control.php';314		require_once ABSPATH . WPINC . '/customize/class-wp-customize-background-image-control.php';315		require_once ABSPATH . WPINC . '/customize/class-wp-customize-background-position-control.php';316		require_once ABSPATH . WPINC . '/customize/class-wp-customize-cropped-image-control.php';317		require_once ABSPATH . WPINC . '/customize/class-wp-customize-site-icon-control.php';318		require_once ABSPATH . WPINC . '/customize/class-wp-customize-header-image-control.php';319		require_once ABSPATH . WPINC . '/customize/class-wp-customize-theme-control.php';320		require_once ABSPATH . WPINC . '/customize/class-wp-customize-code-editor-control.php';321		require_once ABSPATH . WPINC . '/customize/class-wp-widget-area-customize-control.php';322		require_once ABSPATH . WPINC . '/customize/class-wp-widget-form-customize-control.php';323		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-control.php';324		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-item-control.php';325		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-location-control.php';326		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-name-control.php';327		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-locations-control.php';328		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-auto-add-control.php';329 330		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menus-panel.php';331 332		require_once ABSPATH . WPINC . '/customize/class-wp-customize-themes-panel.php';333		require_once ABSPATH . WPINC . '/customize/class-wp-customize-themes-section.php';334		require_once ABSPATH . WPINC . '/customize/class-wp-customize-sidebar-section.php';335		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-section.php';336 337		require_once ABSPATH . WPINC . '/customize/class-wp-customize-custom-css-setting.php';338		require_once ABSPATH . WPINC . '/customize/class-wp-customize-filter-setting.php';339		require_once ABSPATH . WPINC . '/customize/class-wp-customize-header-image-setting.php';340		require_once ABSPATH . WPINC . '/customize/class-wp-customize-background-image-setting.php';341		require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-item-setting.php';

Changelog

Introduced in 3.4.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.0.4 tag, from src/wp-includes/class-wp-customize-manager.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

Something wrong on this page? Report it and it gets fixed in the next regeneration.