While login_form_top is a valid hook called by the wp_login_form function, wp_login_form is not used in wp-login.php, nor is that function used anywhere else that I can find. I greped my entire 3.5.1 install and found one reference to the function– the place where it is defined. It does not appear to actually be used anywhere by the Core.
You will need to search the wp-login.php file for hooks, such as login_form, and try to do what you need with those hooks, or write your own login page (though it sounds like that is what you are trying to avoid).
Related Posts:
- Change “You are now logged out” text
- Change username before login
- Editing ‘Password Reset’ E-mail
- Removing labels and tag on WordPress’s default login form
- Customize user account activation message
- How do we check if the user is logging in or registering?
- add filter login_redirect does not contain original requested redirect
- Custom Login Errors and variables I can use
- Correct method of redirecting user login
- How can I change the email that is inside the default email texts of wordpress?
- How do I hook my function to run only after submitting login form
- Change login CSS
- How to redirect non-logged in users to login with post_password_required()
- Filter page title (displayed in browser tab) of wp-login
- Disable Remember Me in Login Form
- How to redirect a unique link based on login status
- login_url filter creates permanent wp-admin -> wp-login redirection loop
- Login logout below menu bar
- Hook into ‘when user logs in’ [persistent login]
- Change password reqts with NO plugin without breaking resetpass link?
- ‘Problem’ with login_redirect filter – why does it lose the redirect_to parameter
- wp reset password page – head inline script
- Disable emojicons introduced with WP 4.2
- How to remove a filter that is an anonymous object?
- WordPress hooks/filters insert before content or after title
- How to add defer=”defer” tag in plugin javascripts?
- add_action(), add_filter() before or after function
- apply_filters(‘the_content’, $content) vs do_shortcode($content)
- How can I redirect user after entering wrong password?
- How do filters and hooks really work in PHP
- Trouble understanding apply_filters()
- What is the very earliest action hook you can call?
- How would one modify the filtering Gutenberg applies to pasted content?
- How can I modify the WordPress default widget output?
- Add custom options to the wplink dialog
- Remove classes from body_class
- what is __return_false in filters
- Explanation for apply_filters function and its variables
- Gutenberg: Is there a way to know if current block is inside InnerBlocks?
- How to reorder billing fields in WooCommerce Checkout template? [closed]
- Insert HTML just after tag
- the_content and is_main_query
- Changing WooCommerce Display Price Based on User Role & Category [closed]
- How to add a custom CSS class to core blocks in Gutenberg editor?
- How to show page content in feed?
- wp_headers vs send_headers. When to use each?
- Filter any HTTP request URI?
- How to Pass External Variables to Filters/Actions
- How to filter users on admin users page by custom meta field?
- Filter by one custom field, order by another?
- Not able to change wp_title using add_filter
- How to appending to the_content using add_filter with custom post type?
- Query WP REST API v2 by multiple meta keys
- No filter of code on switch from html to visual editor, how?
- Sanitize and data validation with apply_filters() function
- How to modify posts_where filter only for the search query
- How to hook a filter to catch get_post_meta when alternate a custom field output?
- How to get shortcode’s input values inside a filter?
- Removing Image and Caption Dimension Attributes
- How to wrap oEmbed-embedded video in DIV tags inside the_content?
- How to bulk delete all users with no posts?
- How many filter/action hooks are healthy?
- WordPress 3.9 – Trouble Editing TinyMCE 4.0
- Changing JPEG compression depending on image size
- How to add filter with 2 args?
- Why is javascript allowed in my post content?
- How to use update_{$meta_type}_metadata filter to modify meta value
- How to wrap an element around an iframe or embed in content automatically?
- Filter specific shortcode output?
- Custom login form
- WordPress Internal @ Mentions
- How to add headers to outgoing email?
- Earliest hook to reliably get $post/$posts
- Insert new element to array with add_filter
- LESS CSS enqueue_style with add_filter to change rel attribute
- Is it possible to filter comments in a post so a user can only see the comments they have written?
- How to pass/get data to/from the WooCommerce data-product_variations object?
- Remove Editor From Homepage
- How to modify Contact Form 7 Success/Error Response Output [closed]
- Prevent wp_login_form() from redirecting to wp-admin when there are errors
- Where to hook into post content?
- What does (10, 2) mean when used with add_filter
- Filter translations (gettext strings) on specific admin pages
- Filter username field on registration for profanity and unwanted words
- Clarification on filters and hooks
- Adding “Remember Me” in custom login
- remove_filter( ‘the_content’, ‘wpautop’ ); only for certain post types
- At what priority does add_filter overwrite core functions?
- How do I change the language of only the login page?
- Valid characters for actions, hooks and filters
- is it possible to add “extra” table nav to edit-tags.php screens?
- Advanced Custom Fields and Yoast SEO keyword analysis [closed]
- Disable WordPress 3.6 idle logout / login modal window / session expiration
- Adding a filter to qTranslate to change display of language chooser
- Insert Custom HTML After Shortcode
- Modify links when inserted by WYSIWYG editor
- Is there a way to add another row to the tinyMCE kitchen sink toggle?
- How to hook into unregistering a widget instance?
- How to check if a hook is hooked or not?
- Completely strip any hidden formatting when pasting into TinyMCE