How Can I Debug WooCommerce 3 Shipping Calculation Issues?

Debugging in WooCommerce 3

When customizing shipping methods in WooCommerce using the provided tutorial, debugging issues can arise. Specifically, troubleshooting issues with the calculate_shipping function can be challenging.

Problem: Overridden calculate_shipping function produces no output in the Chrome console.

Solution:

JavaScript (HTML) is not suitable for debugging background processes on the server-side. Here are two alternative debugging methods:

1. WC Logs and the WC_Logger Class

• Utilize the WC logger to record logs, accessible via the WooCommerce Dashboard (System Status > Logs).
• Log errors using WC_Logger instead of the standard error log.
• Leverage the print_r function to present debugging details and exception traces.

2. WordPress WP_DEBUG Log

• Enable debug in the wp-config.php file with WP_DEBUG and WP_DEBUG_LOG set to true.
• Use error_log( print_r( $variable, true ) ) to display variables in the wp-content/debug.log file.

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