在主题中的functions.php文件末尾加上以下代码即可(外观>编辑>functions.php)
<span>1</span> <span>//</span><span>官方Gravatar头像调用ssl头像链接</span>
<span>2</span> <span>function</span> get_ssl_avatar(<span>$avatar</span><span>) {
</span><span>3</span> <span>$avatar</span> = <span>preg_replace</span>('/.*\/avatar\/(.*)\?s=([\d]+)&.*/','<img src="https://secure.gravatar.com/avatar/$1?s=$2" class="avatar avatar-$2" height="$2" style="max-width:90%" alt="wordpress禁止调用官方Gravatar头像调用ssl头像链接提升加载速度，wordpressgravatar_PHP教程" >',<span>$avatar</span><span>);
</span><span>4</span> <span>return</span> <span>$avatar</span><span>;
</span><span>5</span> }
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