What is the WordPress rewrite API and what happens if you forget to flush rewrite rules?

WordPress Fundamental Hard

WordPress Fundamental — Hard

What is the WordPress rewrite API and what happens if you forget to flush rewrite rules?

Key points

  • The rewrite API builds URL-to-query-variable mapping rules
  • Forgetting to flush after registering custom post types or taxonomies causes 404 errors
  • WordPress's routing table needs to be updated with new URL patterns
  • Flushing rewrite rules is essential for proper URL handling

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