I have created extra field that user can edit on their 'Your Profile' page. The extra field also available on WordPress register page. What I want to ask is, how to add the field to User > Add new page ? So, when admin creates a user, admin also input the user's extra field


4 Answers 4


With no hooks on that page (User > Add new page) other then user_new_form_tag its not possible to add new fields unless you hack the core file wp-admin/user-new.php .

You could try adding that extra field by adding in in JQuery and processing it when the $_post['action'] == 'adduser' but that wont be very good practice.

  • I want to avoid hacking the core, so maybe I will choose the jQuery solution. It is okay if it's not very good practice, As long as it works :D, thanks for the solution Bainternet
    – Permana
    May 31, 2011 at 6:45
  • Glad i could help.
    – Bainternet
    May 31, 2011 at 6:53
  • Personally, I would say the jQuery approach is better practice than hacking core. Once you have modified core, upgrading becomes a chore.
    – Joe Hoyle
    May 31, 2011 at 10:44
  • @Bainternet: Where do some one put that $_post['action'] == 'adduser' and How can get the last inserted wordpress user's id to update the user extra field in custom table. You should expend your answer. Oct 6, 2012 at 10:08
  • I think the action now is "createuser". At least I've got this while debugging the admin user creation process. Jan 30, 2020 at 10:09

This is older question but there is this now.. end of form though (only).

WP Version 4.3.0 - File "./wp-admin/user-new.php" - Line 330

 * Fires at the end of the new user form.
 * Passes a contextual string to make both types of new user forms
 * uniquely targetable. Contexts are 'add-existing-user' (Multisite),
 * and 'add-new-user' (single site and network admin).
 * @since 3.7.0
 * @param string $type A contextual string specifying which type of new user form the hook follows.
do_action( 'user_new_form', 'add-existing-user' );

Short example:

add_action('user_new_form', 'addmycustomfield');
function addmycustomfield() {
<table class="form-table">
<th scope="row">My test field:</th>
<td><input type="text" size="32" name="testfield" value="<?php echo get_option('madeup_wp_option'); ?>" /></td>

This will place a field on end of add user form. How to save custom user meta data/etc from registration/add user/profile edit/etc is beyond scope of the question and has been answered many times previously. See comments as well.

  • Would you please expand upon this answer?
    – s_ha_dum
    Oct 3, 2015 at 16:44
  • He was looking for action hooks on user add form. This seems to be a new one since first answers were posted above. A code example that expands on this hook is here: stackoverflow.com/a/23067428/503621
    – B. Shea
    Oct 4, 2015 at 2:37
  • More specifically: this hook allows you to add a field to page he requested. Which was the question..
    – B. Shea
    Oct 4, 2015 at 2:47
  • I understand but simply pasting code is only helpful to people with experience enough to understand the code.
    – s_ha_dum
    Oct 4, 2015 at 2:48
  • 1
    The easiest solution of all time. thanks a ton, man. May 19, 2020 at 17:50

I was able to do this through a rather fragile hack. It uses the output buffer to insert the new field. Thankfully there's a nice hook to save the field.

// FRAGILE!  This rewrites code directly in the buffer, upgrading WP may break this
function wpse18772_add_fields( $buffer ) {
  $input_html = '<input type="text" name="your-new-field" id="your-new-field">';

  // will insert a new field after "role"
  $buffer = preg_replace( '~<label\s+for="role">(.*?)</tr>~ims', '<label for="role">$1</tr><tr class="form-field"><th>My New Field</th><td>' . $input_html . '</td></tr>', $buffer );

  return $buffer;

function wpse18772_buffer_start() { ob_start("wpse18772_add_fields");  }
function wpse18772_buffer_end() { ob_end_flush(); }
add_action('admin_head', 'wpse18772_buffer_start', 10, 1);
add_action('admin_footer', 'wpse18772_buffer_end', 10, 1);

function wpse18772_save_fields($user_id) {
  if($_POST['action'] != "adduser" && $_POST['action'] != "createuser") return;

  if(!empty($_POST['your-new-field'])) {
    // save field to meta, or do whatever you want to here
add_action('user_register', 'wpse18772_save_fields');

See this answer. There are no hooks, but you can do it with jQuery. Simply add your html markup with jQuery and it will be done.

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