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How do you debug a custom module in Magento?

How do you debug a custom module in Magento?

Answer: To debug a custom module in Magento, follow these steps:

1. Enable Developer Mode: Set your Magento to developer mode by running `bin/magento deploy:mode:set developer`.

2. Check Logs: Review logs in `var/log/` (system.log, exception.log) for errors.

3. Use Xdebug: Install and configure Xdebug for step-by-step debugging and setting breakpoints.

4. Enable Template Hints: To see which templates are being used, enable template hints in the admin panel under `Stores > Configuration > Advanced > Developer`.

5. Inspect Code: Use tools like `var_dump()`, `print_r()`, or logging with `$this->logger` in your module to track variable values and flow.

6. Clear Cache: Keep clearing cache using `bin/magento cache:clean` and `bin/magento cache:flush` to see changes immediately.

7. Check Configuration: Review your module’s configuration in `etc/` files for any issues.

By following these steps, you can effectively identify and resolve issues in your Magento custom module.

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