WordPress does not have a built-in routing system like some other web frameworks. Instead, it relies on a set of rewrite rules managed by the WordPress Rewrite API. Here's how routing works in WordPress:
1. Permalinks Settings: In the WordPress admin dashboard, you can set up the permalink structure for your site. Permalinks define how URLs for posts, pages, categories, and other content are structured.
2. Rewrite Rules: When a request is made to your WordPress site, the WordPress Rewrite API parses the request URL and matches it against the defined rewrite rules. These rules map the requested URL to specific WordPress query variables.
3. Query Variables: Once the request URL is parsed, WordPress extracts query variables from the URL and uses them to determine what content to display. For example, if the URL is example.com/category/news, WordPress might extract the category query variable with a value of news.
4. Query Execution: Based on the extracted query variables, WordPress executes the appropriate database query to retrieve the content to display on the requested page. For example, if the query variable indicates a category archive, WordPress retrieves posts assigned to the specified category.
5. Template Loading: After retrieving the necessary content from the database, WordPress loads the appropriate template files to render the page. The template hierarchy determines which template files are used based on the content being displayed.
While WordPress does not have a traditional routing system where you define routes and associated controller actions like in frameworks such as Laravel or Symfony, you can still modify the default routing behavior and add custom routes using hooks and filters provided by the WordPress Rewrite API. Additionally, plugins can extend the routing functionality to implement custom endpoints and handle requests in a more RESTful manner.
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