WooCommerce - Show shipping method IDs - List shipping zones, shipping methods and their IDs for use in custom code. https://www.damiencarbery.com/2022/10/show-shipping-method-ids-in-woocommerce/

wc-show-shipping-method-ids.php

<?php
/*
Plugin Name: WooCommerce - Show shipping method IDs
Plugin URI: https://www.damiencarbery.com/2022/10/show-shipping-method-ids-in-woocommerce/
Description: List shipping zones, shipping methods and their IDs for use in custom code.
Author: Damien Carbery
Version: 0.1
*/


class ShowShippingMethodIDs {
	// Returns an instance of this class. 
	public static function get_instance() {
		if ( null == self::$instance ) {
			self::$instance = new self;
		} 
		return self::$instance;
	}


	// Initialize the plugin variables.
	public function __construct() {
		$this->init();
	}


	// Set up WordPress specfic actions.
	public function init() {
		// Print the table with Shipping zones, methods and their IDs.
		add_action( 'woocommerce_settings_shipping', array( $this, 'add_to_shipping_settings' ), 20 );
		// Add CSS to style the table.
		add_action( 'admin_head', array( $this, 'add_shipping_method_ids_css' ) );
	}


	// Return whether on the Shipping zones main page.
	private function is_shipping_zones_page() {
		global $current_section;
		
		if ( empty( $current_section ) && !isset( $_GET['zone_id'] ) ) {
			return true;
		}
		
		return false;

	}
	
	
	public function add_shipping_method_ids_css() {
		if ( $this->is_shipping_zones_page() ) {
?>
<style>
.shipping_method_ids { border: 1px solid #c3c4c7; }
.shipping_method_ids td, .shipping_method_ids th { padding: 5px 10px; background-color: #fff; }
.shipping_method_ids td { border-bottom: 2px solid #f9f9f9; }
.shipping_method_ids ul { margin: 0; }
</style>
<?php
		}
	}


	// Print the table with Shipping zones, methods and their IDs.
	public function add_to_shipping_settings() {
		if ( $this->is_shipping_zones_page() ) {
			$data_store = WC_Data_Store::load( 'shipping-zone' );
			$raw_zones = $data_store->get_zones();
			foreach ( $raw_zones as $raw_zone ) {
				$zones[] = new WC_Shipping_Zone( $raw_zone );
			}
?>
		<h4>Shipping Method IDs</h4>
		<p>The ID is useful when disabling a method via the '<em>woocommerce_package_rates</em>' filter.</p>
		<table class="shipping_method_ids"><tr><th>Zone name</th><th>Method name (Type): ID</th></tr>
<?php		
			foreach ( $zones as $zone ) {
				$zone_shipping_methods = $zone->get_shipping_methods();
				
				if ( count( $zone_shipping_methods ) ) {
			?>
		<tr><th valign="top"><?php echo $zone->get_zone_name() ?></th>
		<td>
		<ul>
<?php
					foreach ( $zone_shipping_methods as $index => $method ) {
						$method_title = $method->get_method_title(); // e.g. "Flat Rate"
						$method_user_title = $method->get_title(); // e.g. whatever you renamed "Flat Rate" into
						$method_rate_id = $method->get_rate_id(); // e.g. "flat_rate:18"

						printf( '<li>%s (%s): <strong>%s</strong></li>%s', $method_user_title, $method_title, $method_rate_id, "\n" );
					}
?>
		</ul>
		</td></tr>
<?php
				}
			}
?>
	</table>
<?php
		}
	}
}

$ShowShippingMethodIDs = new ShowShippingMethodIDs();