wordpress如何在网站上新增ajax注册登录功能

第一步，在header.php或footer.php中引入如下代码：

<script type="text/javascript">
/* <![CDATA[ */
var ajax_sign_object = <?php echo ajax_sign_object(); ?>;
/* ]]> */
</script>

第二步，找到functions.php文件新增以下代码：

/* 获取当前页面url
/* ---------------- */
function tin_get_current_page_url(){
  $ssl = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? true:false;
  $sp = strtolower($_SERVER['SERVER_PROTOCOL']);
  $protocol = substr($sp, 0, strpos($sp, '/')) . (($ssl) ? 's' : '');
  $port  = $_SERVER['SERVER_PORT'];
  $port = ((!$ssl && $port=='80') || ($ssl && $port=='443')) ? '' : ':'.$port;
  $host = isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $_SERVER['SERVER_NAME'];
  return $protocol . '://' . $host . $port . $_SERVER['REQUEST_URI'];
}
 
/* AJAX登录变量
/* -------------- */
function ajax_sign_object(){
  $object = array();
  $object[redirecturl] = tin_get_current_page_url();
  $object[ajaxurl] = admin_url( '/admin-ajax.php' );
  $object[loadingmessage] = '正在请求中，请稍等...';
  $object_json = json_encode($object);
  return $object_json;
}
 
/* AJAX登录验证
/* ------------- */
function tin_ajax_login(){
  $result  = array();
  if(isset($_POST['security']) && wp_verify_nonce( $_POST['security'], 'security_nonce' ) ){
  $creds = array();
  $creds['user_login'] = $_POST['username'];
  $creds['user_password'] = $_POST['password'];
  $creds['remember'] = ( isset( $_POST['remember'] ) ) ? $_POST['remember'] : false;
  $login = wp_signon($creds, false);
  if ( ! is_wp_error( $login ) ){
    $result['loggedin']  = 1;
  }else{
    $result['message']  = ( $login->errors ) ? strip_tags( $login->get_error_message() ) : 'ERROR: ' . esc_HTML__( '请输入正确用户名和密码以登录', 'tinection' );
  }
  }else{
  $result['message'] = __('安全认证失败，请重试！','tinection');
  }
  header( 'content-type: application/json; charset=utf-8' );
  echo json_encode( $result );
  exit;
 
}
add_action( 'wp_ajax_ajaxlogin', 'tin_ajax_login' );
add_action( 'wp_ajax_nopriv_ajaxlogin', 'tin_ajax_login' );
 
/* AJAX注册验证
/* ------------- */
function tin_ajax_register(){
  $result  = array();
  if(isset($_POST['security']) && wp_verify_nonce( $_POST['security'], 'user_security_nonce' ) ){
  $user_login = sanitize_user($_POST['username']);
  $user_pass = $_POST['password'];
  $user_email  = apply_filters( 'user_registration_email', $_POST['email'] );
  $errors  = new WP_Error();
  if( ! validate_username( $user_login ) ){
    $errors->add( 'invalid_username', __( '请输入一个有效用户名','tinection' ) );
  }elseif(username_exists( $user_login )){
    $errors->add( 'username_exists', __( '此用户名已被注册','tinection' ) );
  }elseif(email_exists( $user_email )){
    $errors->add( 'email_exists', __( '此邮箱已被注册','tinection' ) );
  }
  do_action( 'register_post', $user_login, $user_email, $errors );
  $errors = apply_filters( 'registration_errors', $errors, $user_login, $user_email );
  if ( $errors->get_error_code() ){
    $result['success']  = 0;
    $result['message']   = $errors->get_error_message();
 
  } else {
    $user_id = wp_create_user( $user_login, $user_pass, $user_email );
    if ( ! $user_id ) {
    $errors->add( 'registerfail', sprintf( __( '无法注册，请联系管理员','tinection' ), get_option( 'admin_email' ) ) );
    $result['success']  = 0;
    $result['message']   = $errors->get_error_message();  
    } else{
    update_user_option( $user_id, 'default_password_nag', true, true ); //Set up the Password change nag.
    wp_new_user_notification( $user_id, $user_pass );  
    $result['success']  = 1;
    $result['message']  = esc_html__( '注册成功','tinection' );
    //自动登录
    wp_set_current_user($user_id);
      wp_set_auth_cookie($user_id);
      $result['loggedin']  = 1;
    }
 
  }  
  }else{
  $result['message'] = __('安全认证失败，请重试！','tinection');
  }
  header( 'content-type: application/json; charset=utf-8' );
  echo json_encode( $result );
  exit;  
}
add_action( 'wp_ajax_ajaxregister', 'tin_ajax_register' );
add_action( 'wp_ajax_nopriv_ajaxregister', 'tin_ajax_register' );

最后在页面中做一个登录弹窗页面~