我阅读了ACF和；WordPress文档和两者都没有提到在按自定义字段排序分类术语时为什么/何时/如何从数组中删除重复值。

我从中了解到ACF是这样做的StackExchange answer. 但在这个示例代码中，排序不正确，无法与krsort一起使用。对于usort之外的任何内容，它都会给出错误：“krsort（）期望参数2很长”。有人能帮忙吗？

我试图用示例代码生成的快捷代码：

function ranker_shortcode( $atts ) {
    extract( shortcode_atts( 
        array(
            \'taxonomy\' => \'\',
        ), $atts 
    ));
    $args = array( 
        \'taxonomy\' => $taxonomy,
    );

    $sorted = array();
    $terms  = get_terms( $taxonomy, $args );

    if( $terms ) {
        foreach ( $terms as $term ) {
            $sorted[]  = array(
                \'height\' => get_field( \'height\', $term ), // Get field from ACF
                \'name\'  => $term->name,
            );
        }

        krsort( $sorted, SORT_NUMERIC );

        foreach( $sorted as $t ) {
            $html .= $t[\'height\'] . \', \' . $t[\'name\'] . \'<br>\';
        }

        return $html;
    }
}
add_shortcode( \'ranker\', \'ranker_shortcode\' );

Solved + Answer:多亏了Pieter Goosen，我才得以工作。我对他的答案进行了一些编辑，以包含更多的字段。

/**
 * Shortcode to sort taxonomy terms by meta field. Utilizes Advanced Custom Fields plugin.
 */
function sort_term_shortcode( $atts ) {
    // Defualt attributes
    $attributes = shortcode_atts( 
        [
            \'taxonomy\' => \'\',
        ], $atts 
    );

    $html = \'\';

    $taxonomy = filter_var( $attributes[\'taxonomy\'], FILTER_SANITIZE_STRING );
    if ( ! $taxonomy ) 
        return $html; // sanitize shortcode attributes

    if ( ! taxonomy_exists( $taxonomy ) ) 
        return $html; // check shortcode attributes exists

    $terms  = get_terms( $taxonomy );
    if( ! $terms ) 
        return $html; // check terms exists

    $newterms = [];
    foreach ( $terms as $term ) {
        $height  = get_field( \'height\', $term );
        $newterms[$height][]  = array(
            \'name\'        => $term->name,
            \'count\'       => $term->count,
            \'description\' => wpautop( $term->description ),
            \'link\'        => esc_url( get_term_link( $term ) ),
            \'weight\'      => get_field( \'weight\', $term )
        );
    }

    krsort( $newterms, SORT_NUMERIC ); // biggest to smallest sort

    $c = 0;
    foreach( $newterms as $key => $value ) {
        foreach ( $value as $v ) {
            $c++;
            $thumb = wp_get_attachment_image_src( $v[\'avatar\'], \'t_thumb\' );
            $html .= \'<div class="panel panel-default">\' . "\\n";
                $html .= \'<div class="panel-heading">\' . "\\n";
                    $html .= \'<h3 class="panel-title">\' . $c . \' &nbsp; <strong>\' . $v[\'name\'] . \'</strong>,&nbsp; \' . $key . \', \' . $v[\'weight\'] . \'lbs.</h3>\' . "\\n";
                $html .= \'</div>\' . "\\n";
                $html .= \'<div class="media panel-body">\' . "\\n";
                    $html .= \'<a class="media-left" href="\' . $v[\'link\'] . \'"><img src="\' . $thumb[0] . \'"></a>\' . "\\n";
                    $html .= \'<div class="media-body">\' . "\\n";
                        $html .= $v[\'description\'] . "\\n";
                    $html .= \'</div>\' . "\\n";
                $html .= \'</div>\' . "\\n";
            $html .= \'</div>\' . "\\n";
        }
    }
    return $html;

}
add_shortcode( \'sort_term\', \'sort_term_shortcode\' );

add_shortcode( \'ranker\', \'ranker_shortcode\' );
function ranker_shortcode( $atts ) 
{
    // Define our defualt attributes
    $attributes = shortcode_atts( 
        [
            \'taxonomy\' => \'\',
        ], $atts 
    );

    // Set our $html variable as empty string
    $html = \'\';

    // Sanitize and validate our taxonomy to avoid bugs later on. Return $html should anything fail
    $taxonomy = filter_var( $attributes[\'taxonomy\'], FILTER_SANITIZE_STRING );
    if ( !$taxonomy )
        return $html;

    if ( !taxonomy_exists( $taxonomy ) )
        return $html;

    // We made it to hear, check if the ACF plugin is activated and that get_field() exists
    if ( !function_exists( \'get_field\' ) )
        return $html;

    // Great, we made it to here, our checks checked out, lets continue
    $terms  = get_terms( $taxonomy );

    // Make sure we have terms, no need to check for WP_Error object because we know the taxonomy exists
    if( !$terms )
        return $html;

    // We have terms, lets loop through them and build our array
    $sorted = [];
    foreach ( $terms as $term ) {
        // Get our field value and make sure we have a field value, if not, just continue
        $field  = get_field( \'height\', $term ); // Make sure we can pass the term object, don\'t know ACF

        if ( !$field )
            continue;

        // Our term have a field, lets build the array
        $sorted[$field][]  = $term->name;
    }

    // Lets sort the array DESC according to array key, which is our $field value
    krsort( $sorted, SORT_NUMERIC ); // Make sure here that your field is actually numeric to avoid bugs

    if ( !$sorted )
        return $html;

    // We are done, lets build our string and return it
    foreach( $sorted as $key=>$value ) {
        foreach ( $value as $v ) {
            $html .= $key . \', \' . $v . \'<br>\';
        }
    }
    return $html;
}