How Can I Effectively Debug Custom WooCommerce 3 Shipping Methods?

How to Debug in WooCommerce 3

While developing a custom shipping method in WooCommerce, a common issue is the lack of debugging output when updating shipping methods. Overriding the calculate_shipping function may not produce the expected results in the console.

Debugging with WC Logs and WC_Logger

Avoid using JavaScript: Since shipping calculation occurs server-side, JavaScript is not appropriate for debugging. Instead, utilize WC_Logger for better logging capabilities.

Access error logs from WooCommerce > System Status > Logs for convenient review. Logs are also stored in the /wc-logs folder.

Log to a WC logger, instead of the error log, for easier access and categorization. Utilize the WC_Logger log() method for logging, as the add() method will be deprecated.

Example:

$logger = wc_get_logger();
$logger->debug('debug message', ['source' => 'my-extension']);

WordPress WP_DEBUG Log as an Alternative

Enable debug mode in your wp-config.php file:

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);

To log data in your code, use error_log(print_r($variable, true)). The variable's value will be displayed in wp-content/debug.log.

The above is the detailed content of How Can I Effectively Debug Custom WooCommerce 3 Shipping Methods?. For more information, please follow other related articles on the PHP Chinese website!