Title: Frank Höfer's Replies | WordPress.org

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# Frank Höfer

  [  ](https://wordpress.org/support/users/nomadsconnected/)

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## Forum Replies Created

Viewing 2 replies - 1 through 2 (of 2 total)

 *   Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    In
   reply to: [[Imsanity] Images loaded to posts on Mobile](https://wordpress.org/support/topic/images-loaded-to-posts-on-mobile/)
 *  [Frank Höfer](https://wordpress.org/support/users/nomadsconnected/)
 * (@nomadsconnected)
 * [11 years, 11 months ago](https://wordpress.org/support/topic/images-loaded-to-posts-on-mobile/#post-5124069)
 * Another plugin I am using (that moves images to Amazon S3) is hooking into the‘
   wp_update_attachment_metadata’ filter. This works quite well but probably is 
   a bit quick and dirty.
 *   Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    In
   reply to: [[Invitation Code Checker] [Plugin: Invitation Code Checker] Works when making user accounts only](https://wordpress.org/support/topic/plugin-invitation-code-checker-works-when-making-user-accounts-only/)
 *  [Frank Höfer](https://wordpress.org/support/users/nomadsconnected/)
 * (@nomadsconnected)
 * [15 years, 7 months ago](https://wordpress.org/support/topic/plugin-invitation-code-checker-works-when-making-user-accounts-only/#post-1621432)
 * The plugin doesn’t work (I’m using WP 2.8.6) because the invitation code isn’t
   passed as a field in the second form at registration. This can easily be done:
    1. In the initialization routine, add
        `add_action( 'signup_hidden_fields', array(&
       $this, 'add_hidden_field_to_signup' ) );`
    2. Add the following function:
    3.     ```
           function add_hidden_field_to_signup( $errors ) {
           	?>
           		<input type="hidden" name="invitation_code" value="<?php echo wp_specialchars( $_POST['invitation_code'], 1 ) ?>" />
           	<?php }
           ```
       

Viewing 2 replies - 1 through 2 (of 2 total)