Using the QQ Avatar Source for WordPress Comments with QQ Email

get_comment($parent_id)->comment_author_email);

if(strpos($qqmail, '@qq.com'))

$avatar_source = 'q.qlogo.cn';
$img = 'g?b=qq&nk=' . preg_replace('/@qq.com/', '', $qqmail) . '&s=100';

$avatar_source = 'cn.gravatar.com';
$img = 'avatar/$1?s=$2';

// Gravatar 头像
function get_avatar_javst($avatar) { 
    $protocol = is_ssl() ? 'https' : 'http';
    $qqmail = trim(get_comment($parent_id)->comment_author_email);
    if (strpos($qqmail, '@qq.com')) {
        $avatar_source = 'q.qlogo.cn';
        $img = 'g?b=qq&nk=' . preg_replace('/@qq.com/', '', $qqmail) . '&s=100';
    } else {
        $avatar_source = 'cn.gravatar.com';
        $img = 'avatar/$1?s=$2';
    }
    $avatar = preg_replace('/.*\/avatar\/(.*)\?s=([\d]+)&amp;.*/', '<img class="avatar avatar-$2" src="' . $protocol . '://' . $avatar_source . '/' . $img . '" width="$2" height="$2" />', $avatar);
    return $avatar;
}
add_filter('get_avatar', 'get_avatar_javst');