按年份过滤帖子，仅在存在该年份的帖子时显示年份。 WordPress的

Question

我要根据年份过滤帖子。如果该年没有职位，则尝试消除该选项。我已经尝试了一些基本条件，但似乎无法使其正常运行。

这是我的简单尝试之一。

<?php  if($query) {echo $year;} ?></option>

<?php
                    the_archive_title( '<h1 class="page-title">', '</h1>' );
                    the_archive_description( '<div class="taxonomy-description">', '</div>' );
                    ?>

                    <?php
                    $oldY = 2013;
                    $currY = (int) date('Y');
                    $yList = array();
                    for($i=$currY;$i>=$oldY;$i--){
                        array_push($yList,$i);
                    }
                    ?>
                    <div class="arch-filter">
                        <div class="filter-table">
                            <div class="filter-text">
                                Filter Results:
                            </div>
                            <div class="filter-option year-option">
                                <select id="yearSel">
                                    <?php foreach($yList as $year){ ?>
                                    
                                    
                                    <option value="<?php if($query) {echo $year;  }?>">

                                        <?php  if($query) {echo $year;  } ?></option>   

                                    <?php } ?>
                                </select>
                            </div>
                            <div class="filter-button">
                                <a id="sel-filter" href="<?php echo $current_url ?>/?yr=<?php echo end($yList) ?>">Apply</a>
                            </div>
                        </div>

                        <script>
                            $('.filter-table select').change(function(){
                                console.log('hello');
                                var link = "<?php echo $current_url ?>/?yr=";
                                link = link.concat($("#yearSel").val());
                                console.log(link);
                                $('#sel-filter').attr('href',link);
                            });
                        </script>
                    </div>
                </div>
            </div>

                                   <?php
                                   $p_count = 0;
                                   $i =0;
                                   $i++;

                                   if (have_posts()) : while (have_posts()) : the_post();

                                   //if a specific array value exists within a post
                                   $term_list = wp_get_post_terms($post->ID, 'location', array("fields" => "all"));
                                   foreach($term_list as $term_single) {
                                       $country=$term_single->slug; 
                                   }

                                   $cats = array();                                
                                   $cat_slug = '';
                                   $cat_id = '';
                                   foreach (get_the_category($post_id) as $c) {
                                       $cat = get_category($c);   
                                       if($cat->parent == 0){
                                           $cat_slug = $cat->slug;
                                           $cat_id = $cat->term_id;
                                       }
                                       array_push($cats, $cat->name);
                                   }
                                   $cat_data = get_option("category_$cat_id");
                                   $color_code = '';
                                   if(isset($cat_data['extra1'])){
                                       $color = $cat_data['extra1'];
                                   }
                                   if (sizeOf($cats) > 0) {
                                       $post_categories = implode(' / ', $cats);
                                   }
                                   else {
                                       $post_categories = 'Not Assigned';
                                   }

这是一个简单的想法，除了其他条件之外，我还必须使它起作用。这可能比我想的要容易得多。