Вот, взял кусок кода отсюда
WordPress AJAX Login And Register Without A Plugin<?php
function ajax_auth_init(){
wp_register_script('ajax-auth-script', get_template_directory_uri() . '/js/ajax-register-script.js', array('jquery') );
wp_enqueue_script('ajax-auth-script');
wp_localize_script( 'ajax-auth-script', 'ajax_auth_object', array(
'ajaxurl' => admin_url( 'admin-ajax.php' ),
'redirecturl' => home_url(),
'loadingmessage' => __('Sending user info, please wait...')
));
// Enable the user with no privileges to run ajax_register() in AJAX
add_action( 'wp_ajax_nopriv_ajaxregister', 'ajax_register' );
}
// Execute the action only if the user isn't logged in
if (!is_user_logged_in()) {
add_action('init', 'ajax_auth_init');
}
function ajax_register(){
// First check the nonce, if it fails the function will break
check_ajax_referer( 'ajax-register-nonce', 'security' );
// Nonce is checked, get the POST data and sign user on
$info = array();
$info['user_nicename'] = $info['nickname'] = $info['display_name'] = $info['first_name'] = $info['user_login'] = sanitize_user($_POST['username']) ;
$info['user_pass'] = sanitize_text_field($_POST['password']);
$info['user_email'] = sanitize_email( $_POST['email']);
// Register the user
$user_register = wp_insert_user( $info );
if ( is_wp_error($user_register) ){
$error = $user_register->get_error_codes() ;
if(in_array('empty_user_login', $error))
echo json_encode(array('loggedin'=>false, 'message'=>__($user_register->get_error_message('empty_user_login'))));
elseif(in_array('existing_user_login',$error))
echo json_encode(array('loggedin'=>false, 'message'=>__('This username is already registered.')));
elseif(in_array('existing_user_email',$error))
echo json_encode(array('loggedin'=>false, 'message'=>__('This email address is already registered.')));
} else {
auth_user_login($info['nickname'], $info['user_pass'], 'Registration');
}
die();
}
jQuery(document).ready(function($) {
$('#register .submit_button').on('click', function(event) {
var action = 'ajaxregister';
username = $('#signonname').val();
password = $('#signonpassword').val();
email = $('#email').val();
security = $('#signonsecurity').val();
$.ajax({
type: 'POST',
dataType: 'json',
url: ajax_auth_object.ajaxurl,
data: {
'action': action,
'username': username,
'password': password,
'email': email,
'security': security
},
success: function (data) {
$('.status').text(data.message);
if (data.loggedin == true) {
document.location.href = ajax_auth_object.redirecturl;
}
}
});
event.preventDefault();
});
});
