Use a custom URL parameter to edit a specific post ID

To let a single page edit any post by ID, set the form’s post arg to "param" — Advanced Forms will then read the target post ID from a query parameter on the current URL.

Configuring the form

Using the shortcode:

[advanced_form form="YOUR_FORM_KEY_HERE" post="param"]

Or with the function:

advanced_form( 'YOUR_FORM_KEY_HERE', [ 'post' => 'param' ] );

With that in place, the form looks for a post query parameter on the request URL. For example, the URL https://example.com/edit-post?post=123 will load the form configured to edit post 123.

Customising the query parameter

If post clashes with something else on your site, you can change the parameter name with the af/form/editing/query_param filter:

add_filter( 'af/form/editing/query_param', function ( $query_param, $form, $args ) {
    return 'some_custom_param';
}, 10, 3 );

With that filter in place, the form looks for some_custom_param instead — e.g. https://example.com/edit-post?some_custom_param=123.

See also

• How to redirect the form submission after post creation — pair this with a redirect that includes the new post’s ID for a create-then-edit flow.