woocommerce_register_post_type_product_variation │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_register_post_type_product_variation', 'wp_kama_woocommerce_register_post_type_product_variation_filter' );

/**
 * Function for `woocommerce_register_post_type_product_variation` filter-hook.
 * 
 * @param  $array 
 *
 * @return 
 */
function wp_kama_woocommerce_register_post_type_product_variation_filter( $array ){

	// filter...
	return $array;
}

$array

-

Where the hook is called

apply_filters(
	'woocommerce_register_post_type_product_variation',
	array(
		'label'           => __( 'Variations', 'woocommerce' ),
		'public'          => false,
		'hierarchical'    => false,
		'supports'        => false,
		'capability_type' => 'product',
		'rewrite'         => false,
	)
)

Where the hook is used in WooCommerce

add_filter( 'woocommerce_register_post_type_product_variation', array( $this, 'enable_rest_api_for_product_variation' ) );