我正在尝试将内容传递到“google\\u dfp\\u ad\\u slot”过滤器。这可以在短码函数中完成吗？

/**
     * Shortcode function to dynamically add google dfp ads to inline content and widgets
     *
     * [fopconnect_ad is_page="true" page="about"]
     *   {JS}googletag.defineSlot(\'/6111408/FOPC_All_LeaderBoard_728x90\', [728, 90], \'div-gpt-ad-1398288352265-0\').addService(googletag.pubads());{/JS}
     *   {HTML}<div id=\'div-gpt-ad-1342652501811-0\' style=\'width:160px; height:600px;\'><script type=\'text/javascript\'>googletag.cmd.push(function() { googletag.display(\'div-gpt-ad-1342652501811-0\'); });</script></div>{/HTML}
     * [/fopconnect_ad]
     *
     * @param  array $atts    shortcode attributes
     * @param  string $content
     * @return sting
     */



    add_shortcode( \'fopconnect_ad\', \'fopconnect_ad_func\' );
    function fopconnect_ad_func( $atts, $content ) {
        extract( shortcode_atts( array(
            \'is_page\' => false,
            \'page\' => \'\' // can be title, slug, or id
        ), $atts ) );

        preg_match("#\\\\{JS\\\\}(.*?)\\\\{/JS\\\\}#s", $content, $matches);
        $js = ( !empty( $matches[1] ) ? $matches[1] : \'\' );

        preg_match("#\\\\{HTML\\\\}(.*?)\\\\{/HTML\\\\}#s", $content, $matches);
        $content = ( !empty( $matches[1] ) ? $matches[1] : \'\' );

        if ( $is_page && is_page( explode(\', \', $page) ) ) {
            add_filter( \'google_dfp_ad_slot\', function( $js ) { return $js; } );
        }

        if ( $is_page && is_page( explode(\', \', $page) ) ) {
            return $content;
        }

    }