Word Press

The white screen of death occurs when a fatal PHP error halts execution during page rendering, often triggered by an incompatible plugin update. To resolve this, access your server via FTP or an SSH terminal, navigate to the wp-content/plugins/ directory, and rename the folder of the recently updated plugin to temporarily disable it. Next, enable WP_DEBUG by editing your wp-config.php file to set define('WP_DEBUG', true);, which will display the exact PHP stack trace on your screen instead of a blank page. Identify the offending line of code within the error log, remove or replace the faulty plugin file, and restore your wp-config.php debug flag to false. If the issue persists, switch your active theme via the database wp_options table to ensure the error is not originating from your theme's functions.php file.

When an incoming HTTP request hits the server, WordPress utilizes the WP_Rewrite class to map human-readable URL structures (permalinks) back to internal query variables like post_id, name, or pagename. These rewrite rules are stored serialized in the wp_options database table and are compiled into Apache .htaccess rewrite rules or handled via Nginx try_files directives. During bootstrap initialization in wp-settings.php, the WP class parses the requested URI against the active rewrite rule regular expressions to populate the global $wp_query object. If a match is found, corresponding database queries are executed via MySQL to fetch the post data; otherwise, a 404 HTTP status header is sent and the template falls back to 404.php.

To migrate a WordPress site, first export your local database using phpMyAdmin or WP-CLI with the command wp db export export.sql. Use a text editor or search-and-replace tool to globally replace all instances of your local development URL (e.g., http://localhost/mysite) with your live production domain (e.g., https://example.com) within the SQL export file. Next, upload all core WordPress files, themes, and plugins from your local directory to your production server using an SFTP client like FileZilla. Import your modified SQL file into the production MySQL database, and update the database connection strings inside your production wp-config.php file to match the new host credentials.

WordPress is a dynamic content management system that processes server-side code and queries a database in real time for every individual user request, whereas static site generators compile Markdown files into pre-built HTML, CSS, and JS directories during a build step. This architectural difference means WordPress offers immediate content publishing and dynamic user authentication out of the box, but requires careful caching and server tuning to handle high traffic spikes. Static site generators deliver exceptional speed, superior security due to the absence of a database or server-side execution engine, and lower hosting resource requirements, but require technical intervention for publishing new content and managing dynamic features like user comments.

This critical error indicates that WordPress is unable to successfully communicate with your MySQL or MariaDB database server. The most common cause is incorrect database credentials defined in your wp-config.php file, such as an outdated DB_PASSWORD, an incorrect DB_HOST IP address, or a misspelled DB_NAME. To diagnose this, open wp-config.php and verify that your credentials match the active database settings on your hosting control panel. Alternatively, the MySQL database server itself may have crashed, run out of memory, or reached its maximum concurrent connection limit due to heavy traffic. Restarting your database service via SSH using sudo systemctl restart mysql or contacting your hosting provider to check server resource allocation will typically resolve the outage.