我已经找了几个小时的例子来说明如何做到这一点。我有两个简单的分类法，类型，大小。我需要创建一个自定义表单，其中有两个分类法可用作选择列表/过滤器。

请帮忙！

提前发送

<form role="search" method="get" id="searchform" action="<?php bloginfo(\'home\'); ?>">
            <input type="text" value="" name="s" id="s" /> 

        <?php
        function get_terms_dropdown($taxonomies, $selectname,$args){
            $myterms = get_terms($taxonomies, $args);
            $selected = "selected";
            $output ="<select name=\'".$selectname."\'><option selected=\'".$selected."\'>Select</option>\'";

            foreach($myterms as $term){
                //$term_taxonomy=$term->$taxonomies;
                $term_slug=$term->slug;
                $term_name =$term->name;
                $output .="<option value=\'".$term_slug."\'>".$term_name."</option>";
            }
            $output .="</select>";
        return $output;
        }

        $taxonomies = array(\'location\');
        $taxonomies2 = array(\'function\');
        $taxonomies3 = array(\'sector\');
        $args = array(\'order\'=>\'ASC\',\'hide_empty\'=>false);
        echo "<br />".get_terms_dropdown($taxonomies,\'location\' ,$args)."<br />";
        echo get_terms_dropdown($taxonomies2,\'function\' ,$args)."<br />";
        echo get_terms_dropdown($taxonomies3, \'sector\' ,$args)."<br />";
        ?>
        <input type="submit" id="searchsubmit" value="Search" />
        </form>