woocommerce_email_editor_send_preview_email_rendered_data │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_email_editor_send_preview_email_rendered_data', 'wp_kama_woocommerce_email_editor_send_preview_rendered_data_filter' );

/**
 * Function for `woocommerce_email_editor_send_preview_email_rendered_data` filter-hook.
 * 
 * @param  $rendered_data 
 *
 * @return 
 */
function wp_kama_woocommerce_email_editor_send_preview_rendered_data_filter( $rendered_data ){

	// filter...
	return $rendered_data;
}

$rendered_data

-

Where the hook is called

$rendered_data = apply_filters( 'woocommerce_email_editor_send_preview_email_rendered_data', $rendered_data );

Where the hook is used in WooCommerce

add_filter( 'woocommerce_email_editor_send_preview_email_rendered_data', array( $this, 'update_send_preview_email_rendered_data' ) );