category_link

What is WordPress Hook: category_link

The category_link hook in WordPress is used to modify the URL for the category archive page. It allows developers to change the permalink structure for category pages.

Understanding the Hook: category_link

The category_link hook is located within the get_category_link function in WordPress. This function is responsible for generating the URL for a specific category archive page. By using the category_link hook, developers can modify the output of this function and customize the category page URL.

Hook Parameters (if applicable): category_link

The category_link hook accepts two parameters: $category_link and $category_id. The $category_link parameter is the default URL for the category archive page, and the $category_id parameter is the ID of the category. Developers can use these parameters to customize the category page URL based on the category ID.

Hook Doesn’t Work: category_link

If the category_link hook doesn’t work as expected, it could be due to conflicts with other plugins or themes that also modify category page URLs. To troubleshoot this issue, developers should deactivate other plugins and switch to a default WordPress theme to see if the problem persists. Additionally, checking for syntax errors in the code implementing the category_link hook is recommended.

Best Practices & Usage Notes (if applicable): category_link

When using the category_link hook, developers should be aware that modifying category page URLs can impact the site’s SEO and user experience. It’s important to ensure that the new URL structure is logical and follows best practices for website navigation. Additionally, developers should consider creating redirects for old category page URLs to prevent broken links.

Usage Example: category_link

“`php
function custom_category_link( $category_link, $category_id ) {
// Modify the category page URL based on the category ID
$new_category_link = $category_link . ‘/custom-slug’;
return $new_category_link;
}
add_filter( ‘category_link’, ‘custom_category_link’, 10, 2 );
“`

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