The WordPress White Screen of Death (WSOD) shows a blank page with no error message. This step-by-step guide covers enabling WP_DEBUG, fixing memory limits, isolating plugin and theme conflicts, using WordPress Recovery Mode, and preventing WSOD from happening again.
Query Monitor is not just a queries plugin – it is a complete execution inspector for every WordPress request. This tutorial explains every panel: Queries (duplicates, slow queries, component filter), Hooks, HTTP API, PHP Errors, Scripts and Styles, Languages, Conditionals, Environment, Capabilities, Blocks, Caches, and REST API. Real debugging workflows with each panel.
Most developers set WP_DEBUG and stop there. This guide documents every WordPress debug constant in wp-config.php: WP_DEBUG, WP_DEBUG_LOG, WP_DEBUG_DISPLAY, SCRIPT_DEBUG, SAVEQUERIES, WP_CACHE, CONCATENATE_SCRIPTS, and more. Includes correct configurations for local development, staging, and production, plus how to use ini_set for custom error log paths.
Learn how to enable WP_DEBUG, configure the debug log file, read error entries, write custom log functions, manage log file size, and use Query Monitor for real-time WordPress debugging.
