What is WordPress Hook: preview_page_link
The preview_page_link hook in WordPress is used to modify the URL for previewing a page before it is published. This hook allows developers to customize the preview link for a page, providing flexibility in how the preview functionality is implemented.
Understanding the Hook: preview_page_link
The preview_page_link hook is located within the get_preview_post_link function in WordPress. This function is responsible for generating the URL used to preview a page before it is published. By using the preview_page_link hook, developers can modify the default behavior of this function to suit their specific needs.
Hook Parameters (if applicable): preview_page_link
The preview_page_link hook does not accept any parameters. It is a simple filter hook that allows developers to modify the preview page link without the need for additional arguments.
Hook Doesn’t Work: preview_page_link
If the preview_page_link hook is not working as expected, it may be due to conflicts with other plugins or themes that are also modifying the preview page link. To troubleshoot this issue, developers should deactivate other plugins and switch to a default theme to see if the problem persists. Additionally, checking for syntax errors or typos in the code implementing the hook is recommended.
Best Practices & Usage Notes (if applicable): preview_page_link
When using the preview_page_link hook, developers should be mindful of potential conflicts with other plugins or themes that may also be modifying the preview page link. It is best practice to test the implementation of this hook in a controlled environment to ensure compatibility with other customizations.
Usage Example: preview_page_link
“`php
function custom_preview_page_link( $link ) {
// Modify the preview page link here
return $link;
}
add_filter( ‘preview_page_link’, ‘custom_preview_page_link’ );
“`
