Php 仅在wordpress meta中按行显示顶级类别cubell主题

我正在使用一个主题和下面的代码来显示by行上的类别。我想知道是否有一种方法可以只显示第一个类别，而不是与帖子相关的所有类别。我的编码技能还没有扩展到这一步

提前感谢您的帮助

山姆

if ( ! function_exists( 'cb_byline' ) ) {
    function cb_byline( $cb_cat = true, $cb_post_id = NULL, $cb_short_comment_line = false, $cb_posts_on = false, $cb_post_views_off = false ) {

        if ( $cb_post_id == NULL ) {
            global $post;
            $cb_post_id = $post->ID;
        }

        $cb_meta_onoff = ot_get_option( 'cb_meta_onoff', 'on' );
        $cb_byline_author = ot_get_option( 'cb_byline_author', 'on' );
        $cb_byline_date = ot_get_option( 'cb_byline_date', 'on' );
        $cb_byline_category = ot_get_option( 'cb_byline_category', 'on' );
        $cb_byline_comments = ot_get_option( 'cb_byline_comments', 'on' );
        $cb_byline_postviews = ot_get_option( 'cb_byline_postviews', 'off' );
        $cb_disqus_code = ot_get_option( 'cb_disqus_shortname', NULL );
        $cb_byline = $cb_cat_output = $cb_comments = $cb_post_views = NULL;
        $cb_cats = get_the_category($cb_post_id);

        if (  ! empty ( $cb_cats ) && ( $cb_cat == true ) ) {
            $cb_cat_output = ' <div class="cb-category cb-byline-element"><i class="fa fa-folder-o"></i> ';
            $i = 1;
            foreach($cb_cats as $category) {
                if ( $i != 1 ) { $cb_cat_output .= ', '; }
                 $cb_cat_output .= ' <a href="' . get_category_parents( $category->term_id ) . '" title="' . esc_attr( sprintf( __( "View all posts in %s", "cubell" ), $category->name ) ) . '">' . $category->cat_name.'</a>';
                 $i++;
            }
            $cb_cat_output .= '</div>';
        }

if ( ! function_exists( 'cb_byline' ) ) {
    function cb_byline( $cb_cat = true, $cb_post_id = NULL, $cb_short_comment_line = false, $cb_posts_on = false, $cb_post_views_off = false ) {

        if ( $cb_post_id == NULL ) {
            global $post;
            $cb_post_id = $post->ID;
        }

        $cb_meta_onoff = ot_get_option( 'cb_meta_onoff', 'on' );
        $cb_byline_author = ot_get_option( 'cb_byline_author', 'on' );
        $cb_byline_date = ot_get_option( 'cb_byline_date', 'on' );
        $cb_byline_category = ot_get_option( 'cb_byline_category', 'on' );
        $cb_byline_comments = ot_get_option( 'cb_byline_comments', 'on' );
        $cb_byline_postviews = ot_get_option( 'cb_byline_postviews', 'off' );
        $cb_disqus_code = ot_get_option( 'cb_disqus_shortname', NULL );
        $cb_byline = $cb_cat_output = $cb_comments = $cb_post_views = NULL;
        $cb_cats = get_the_category($cb_post_id);

        if (  ! empty ( $cb_cats ) && ( $cb_cat == true ) ) {
            $cb_cat_output = ' <div class="cb-category cb-byline-element"><i class="fa fa-folder-o"></i> ';
            $i = 1;
     //       foreach($cb_cats as $category) {
                if ( $i != 1 ) { $cb_cat_output .= ', '; }
                 $cb_cat_output .= ' <a href="' . get_category_parents( $cb_cats[0]->term_id ) . '" title="' . esc_attr( sprintf( __( "View all posts in %s", "cubell" ), $cb_cats[0]->name ) ) . '">' . $cb_cats[0]->cat_name.'</a>';
                 $i++;
    //        }
            $cb_cat_output .= '</div>';
        }