Learn about the after_mu_upgrade hook in WordPress, its parameters, usage, and best practices for executing custom functions after a MultiSite upgrade. Troubleshoot any issues and ensure your custom code doesn't interfere with the upgrade process.
Learn about the pre_update_option_{$option_name} hook in Wordpress, used to customize option value updates. Understand its parameters, troubleshooting, best practices, and usage examples for effective development.
Learn how to use the register_setting hook in WordPress to add new settings to your plugin or theme. Understand the parameters, best practices, and common issues with this essential hook for customizing WordPress functionality.
