php WordPress |类别过滤器下拉列表

Posted 2021-05-04

<div class="category-filter">
  @php
    $args = array(
    'show_option_all' => 'Show All'
    );
    wp_dropdown_categories($args)
  @endphp
  <script type="text/javascript">
    <!--
      var dropdown = document.getElementById("cat");
      function onCatChange() {
        if ( dropdown.options[dropdown.selectedIndex].value > 0 ) {
          location.href = "@php echo esc_url( home_url( '/' ) ) @endphp?cat="+dropdown.options[dropdown.selectedIndex].value;
        } else {
          location.href = "@php echo get_permalink( get_option( 'page_for_posts' ) ) @endphp"
        }
      }
      dropdown.onchange = onCatChange;
    -->
  </script>
</div>