如何合并 Google 字体导入

我正在使用带有 Divi 主题的 WordPress，

有这样的代码：

    function et_divi_fonts_url() {
    $fonts_url = '';

    /* Translators: If there are characters in your language that are not
     * supported by Open Sans, translate this to 'off'. Do not translate
     * into your own language.
     */
    $open_sans = _x( 'on', 'Open Sans font: on or off', 'Divi' );

    if ( 'off' !== $open_sans ) {
        $font_families = array();

        if ( 'off' !== $open_sans )
            $font_families[] = 'Open+Sans:300italic,400italic,700italic,800italic,400,300,700,800';

        $protocol = is_ssl() ? 'https' : 'http';
        $query_args = array(
            'family' => implode( '%7C', $font_families ),
            'subset' => 'latin,latin-ext',
        );
        $fonts_url = add_query_arg( $query_args, "$protocol://fonts.googleapis.com/css" );
    }

    return $fonts_url;
}

这会生成以下输出：

<link rel='stylesheet' id='tp-open-sans-css'  href='http://fonts.googleapis.com/css?family=Open+Sans%3A300%2C400%2C600%2C700%2C800&#038;ver=4.2.4' type='text/css' media='all' />
<link rel='stylesheet' id='tp-raleway-css'  href='http://fonts.googleapis.com/css?family=Raleway%3A100%2C200%2C300%2C400%2C500%2C600%2C700%2C800%2C900&#038;ver=4.2.4' type='text/css' media='all' />
<link rel='stylesheet' id='tp-droid-serif-css'  href='http://fonts.googleapis.com/css?family=Droid+Serif%3A400%2C700&#038;ver=4.2.4' type='text/css' media='all' />
<link rel='stylesheet' id='et_monarch-open-sans-css'  href='http://fonts.googleapis.com/css?family=Open+Sans:400,700' type='text/css' media='all' />
<link rel='stylesheet' id='divi-fonts-css'  href='http://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,700italic,800italic,400,300,700,800&#038;subset=latin,latin-ext' type='text/css' media='all' />

我想知道是否有一种半简单的方法将所有这些资源组合到一个请求中？

取自https://developers.google.com/fonts/docs/getting_started?hl=en https://developers.google.com/fonts/docs/getting_started?hl=en:

要请求多个字体系列，请使用竖线字符 (|) 分隔名称。

例如，要请求 Tangerine、Inconsolata 和 Droid Sans 字体：

https://fonts.googleapis.com/css?family=Tangerine|Inconsolata|Droid+Sans