Eliminar usuarios

manejo-usuarios.php

<?php
/*
Plugin Name: Manejo de Usuarios
Description: Aprendiendo a gestionar usuarios en WordPress
Text Domain: manejo-usuarios
*/

// Formulario de registro
add_shortcode( 'dp_mu_register_form', 'dp_mu_register_form_func' );

function dp_mu_register_form_func(){
  ob_start();

  if( is_user_logged_in() ):

  // var_dump( get_userdata( get_current_user_id() ) );
  // echo "<br><br><br>";
  // var_dump( wp_get_current_user() );

  // $user_data = wp_get_current_user();
  $user_data = get_userdata( get_current_user_id() );
  ?>
    <form id="dp_mu_register_form" class="dp_mu_register_form" action="" method="post">

      <!-- <label for="dp_mu_username"><?php esc_html_e( 'Nombre de usuario', 'manejo-usuarios' ); ?></label>
      <input type="text" id="dp_mu_username" name="dp_mu_username" value=""> -->

      <label for="dp_mu_firstname"><?php esc_html_e( 'Nombre', 'manejo-usuarios' ); ?></label>
      <input type="text" id="dp_mu_firstname" name="dp_mu_firstname" value="<?php echo esc_attr($user_data->first_name); ?>">

      <label for="dp_mu_lastname"><?php esc_html_e( 'Apellidos', 'manejo-usuarios' ); ?></label>
      <input type="text" id="dp_mu_lastname" name="dp_mu_lastname" value="<?php echo esc_attr($user_data->last_name); ?>">

      <label for="dp_mu_email"><?php esc_html_e( 'Correo', 'manejo-usuarios' ); ?></label>
      <input type="text" id="dp_mu_email" name="dp_mu_email" value="<?php echo esc_attr($user_data->user_email); ?>">

      <label for="dp_mu_password"><?php esc_html_e( 'Contraseña', 'manejo-usuarios' ); ?></label>
      <input type="text" id="dp_mu_password" name="dp_mu_password" value="">

      <label for="dp_mu_bio"><?php esc_html_e( 'Mini bio', 'manejo-usuarios' ); ?></label>
      <textarea name="dp_mu_bio" id="dp_mu_bio"><?php echo esc_textarea($user_data->description); ?></textarea>

      <label for="dp_mu_website"><?php esc_html_e( 'Sitio web', 'manejo-usuarios' ); ?></label>
      <input type="text" id="dp_mu_website" name="dp_mu_website" value="<?php echo esc_attr($user_data->user_url); ?>">

      <input type="submit" name="" value="<?php esc_html_e( 'Modificar usuario', 'manejo-usuarios' ); ?>">

    </form>
    <?php
    return ob_get_clean();
  else:
    return '';
  endif;
}

// Registramos el usuario
add_action( 'init', 'dp_mu_register_user' );

function dp_mu_register_user(){

  if( is_user_logged_in() && !empty( $_POST['dp_mu_email'] ) && !empty( $_POST['dp_mu_password'] ) && !empty( $_POST['dp_mu_firstname'] ) && !empty( $_POST['dp_mu_firstname'] ) && !empty( $_POST['dp_mu_lastname'] ) && !empty( $_POST['dp_mu_website'] ) && !empty( $_POST['dp_mu_bio'] ) ):

    $firstname  = $_POST['dp_mu_firstname'];
    $lastname   = $_POST['dp_mu_lastname'];
    $bio        = $_POST['dp_mu_bio'];
    $website    = $_POST['dp_mu_website'];
    $email      = $_POST['dp_mu_email'];
    $password   = $_POST['dp_mu_password'];
    $user_id    = get_current_user_id();

    // Método simple 'wp_create_user'
    // $user_id = wp_create_user( $username, $password, $email );

    // Método completo 'wp_insert_user'
    $userdata = array(
      'ID'                        => $user_id,
      'user_pass'                 => $password,
      'user_url'                  => $website,
      'user_email'                => $email,
      'first_name'                => $firstname,
      'last_name'                 => $lastname,
      'display_name'              => $firstname. ' ' .$lastname,
      'description'               => $bio,
      'show_admin_bar_front'      => 'false',
      // 'role'                      => ''
    );

    // $user_id = wp_insert_user( $userdata );
    $user_id = wp_update_user( $userdata );

    if( is_wp_error( $user_id ) ):
      wp_die( $user_id->get_error_message() );
    else:
      wp_die( 'Usuario modificado correctamente con ID: ' . $user_id );
    endif;

  endif;
}

// Eliminar todos los usuarios menos el usuario Dios
add_filter( 'admin_footer_text', 'dp_mu_show_delete_message' );

function dp_mu_show_delete_message($message){
  $user_data = wp_get_current_user();
  if( $user_data->user_login == 'DavidPeralvarez' ):
    $url = add_query_arg(
      array( 'action' => 'dp_mu_destroy' ),
      admin_url()
    );
    return '<a href="'.$url.'">Botón rojo</a>';
  endif;
  return $message;
}

add_action( 'admin_init', 'dp_mu_delete_users' );
function dp_mu_delete_users(){
  if( !empty($_GET['action']) && ($_GET['action'] == 'dp_mu_destroy') ):
    // Eliminamos los usuarios
    require_once(ABSPATH.'wp-admin/includes/user.php' );
    $all_users = get_users();

    foreach ( $all_users as $user ):
      if( $user->user_login != 'DavidPeralvarez' ):
        wp_delete_user( $user->ID );
      endif;
    endforeach;

  endif;
}

// Añadir estilos
add_action( 'wp_enqueue_scripts', 'dp_mu_enqueue_styles' );

function dp_mu_enqueue_styles(){
  wp_register_style( 'dp-mu-styles', plugins_url( 'manejo-usuarios/css/style.css' ) );
  wp_enqueue_style( 'dp-mu-styles' );
}