<?php
 /*
 Plugin Name: Gravatar 用户头像加速
 Description: 解决 Gravatar 用户头像在国内无法显示的问题。
 Version: 1.0.0
 Author: wpfast.org
 Author URI: https://wpfast.org
 License: GPL
 Copyright: wpfast.org
 Text Domain: wpfast-gravatar
 */
 if ( ! function_exists( 'wpfast_avatar' ) ) :
 function wpfast_avatar($avatar) {
 $avatar = str_replace(array("www.gravatar.com","0.gravatar.com","1.gravatar.com","2.gravatar.com","secure.gravatar.com",'"cn.gravatar.com","en.gravatar.com"'),"gravatar.wpfast.org",$avatar);
 return $avatar;
 }
 add_filter( 'get_avatar', 'wpfast_avatar');
 endif;