Banir wp - Impedir usuário de editar perfil

functions.php

<?php
// Banir usuário
// Crédito: https://gist.github.com/Giuseppe-Mazzapica/11070063
add_action( 'personal_options', 'rpa_profile_ban_field' );
add_action( 'edit_user_profile_update', 'rpa_profile_ban_field_save' );
function rpa_profile_ban_field( \WP_User $user ) {
  $current = wp_get_current_user();
  if ( ! is_admin() || $user->ID === $current->ID ) return;
  if ( ! user_can( $current, 'edit_users' ) ) return;
  $target = new WP_User( $user->ID ); 
  if ( $target->exists() &&  ! user_can( $target, 'edit_users' ) ) {
    $banned = (int) get_user_meta( $user->ID, '_profile_banned', TRUE );
  ?>
  <table class="form-table"><tbody><tr>
  <th scope="row">Impedir edição do perfil</th><td>
  <input<?php checked(1, $banned); ?> name="_profile_banned" value="1" type="checkbox">
  Impedir esse usuário de editar o seu perfil?
  </td></tr></tbody></table>
  <?php
  }
}
function rpa_profile_ban_field_save( $userid ) {
  $current = wp_get_current_user();
  if ( ! is_admin() || $user->ID === $current->ID ) return;
  if ( ! user_can( $current, 'edit_users' ) ) return;
  $target = new WP_User( $userid );
  if ( ! $target->exists() || user_can( $target, 'edit_users' ) ) return; 
  $ban = filter_input( INPUT_POST, '_profile_banned', FILTER_SANITIZE_NUMBER_INT );
  if ( (int) $ban > 0 ) {
    update_user_meta( $userid, '_profile_banned', 1 );
  } elseif ( get_user_meta( $userid, '_profile_banned', TRUE ) ) {
    delete_user_meta( $userid, '_profile_banned' );
  }
}
// Fim banir usuário