admin_head │ action-hook │ WC 1.0

Это хук WordPress - admin_head. Плагин его просто использует.

Fires in head section for all admin pages.

Usage

add_action( 'admin_head', 'wp_kama_admin_head_action' );

/**
 * Function for `admin_head` action-hook.
 * 
 * @return void
 */
function wp_kama_admin_head_action(){

	// action...
}

Where the hook is called

WC_Admin_Setup_Wizard::setup_wizard_header()
admin_head
woocommerce/includes/admin/class-wc-admin-setup-wizard.php 350 
<?php do_action( 'admin_head' ); ?>

Where the hook is used in WooCommerce

woocommerce/includes/admin/class-wc-admin-exporters.php 36 
add_action( 'admin_head', array( $this, 'hide_from_menus' ) );
woocommerce/includes/admin/class-wc-admin-importers.php 34 
add_action( 'admin_head', array( $this, 'hide_from_menus' ) );
woocommerce/src/Admin/PageController.php 67 
add_action( 'admin_head', array( $this, 'remove_app_entry_page_menu_item' ), 20 );
woocommerce/src/Internal/Admin/Coupons.php 58 
add_action( 'admin_head', array( $this, 'fix_coupon_menu_highlight' ), 99 );
woocommerce/src/Internal/Admin/Homescreen.php 50 
add_action( 'admin_head', array( $this, 'update_link_structure' ), 20 );
woocommerce/src/Internal/Admin/Loader.php 79 
add_action( 'admin_head', array( __CLASS__, 'remove_notices' ) );
woocommerce/src/Internal/Admin/Loader.php 80 
add_action( 'admin_head', array( __CLASS__, 'smart_app_banner' ) );