What is WordPress Hook: post_link
The post_link hook in WordPress is used to modify the permalink for a post before it is displayed. It allows developers to change the URL structure of individual posts or add custom parameters to the permalink.
Understanding the Hook: post_link
The post_link hook is located within the get_permalink function in WordPress. This function is responsible for retrieving the permalink for a post and passing it through the post_link hook before returning the final URL.
Hook Parameters (if applicable): post_link
The post_link hook does not accept any arguments or parameters. It simply allows developers to modify the permalink string directly.
Hook Doesn’t Work: post_link
If the post_link hook doesn’t seem to be working, it could be due to conflicts with other plugins or themes that are also modifying the permalink. It’s important to check for any conflicting code and ensure that the hook is being added in the correct location within the WordPress theme or plugin.
Best Practices & Usage Notes (if applicable): post_link
When using the post_link hook, it’s important to be mindful of the impact it may have on SEO. Changing the permalink structure can affect the way search engines index and rank your content. It’s also important to consider the user experience and ensure that any custom parameters added to the permalink are meaningful and relevant to the content.
post_link Usage Example: post_link
“`php
function custom_post_link($permalink, $post) {
// Add a custom parameter to the permalink
$custom_param = ‘custom=123’;
$permalink .= ‘?’ . $custom_param;
return $permalink;
}
add_filter(‘post_link’, ‘custom_post_link’, 10, 2);
“`
