zw-1988.com

一些用于自定义get_terms的方法和代码

功能

按照条件获取分类，包括分类法

参数

 $args = array (
       'taxonomy' => 'category', //分类法名称
       'orderby' => 'name', //排序条件
       'order' => 'ASC', //升序或者降序
       'hide_empty' => true, //隐藏没有内容的分类
       'include' => 'all',//数组，包括某些分类
       'exclude' => 'all',//排除某些分类
       'exclude_tree' => 'all', //排除分类树，即包括子分类
       'number' => false, //显示数量
       'offset' => '',//偏移
       'fields' => 'all',//字段
       'name' => '',//名称
       'slug' => '',//别名
       'hierarchical' => true, //层级
       'search' => '', //搜索
       'name__like' => '', //看起来像
       'description__like' => '',//描述像
       'pad_counts' => false, //can be 0, '0', '' too
       'get' => '',
       'child_of' => false, //上级的ID
       'childless' => false,
       'cache_domain' => 'core',
       'update_term_meta_cache' => true, //can be 1, '1' too
       'meta_query' => '',//按照自定义字段查询
       'meta_key' => array(),
       'meta_value'=> '',
);
$terms= get_terms($args);  

例子

<?php
$args=array(
'orderby' => 'name',
'hide_empty' => false, //显示所有分类
'order' => 'ASC'
);
$categories=get_categories($args);
foreach($categories as $category) {
echo '<p>Category: <a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $category->name ) . '" ' . '>' . $category->name.'</a> </p> ';
echo '<p> Description:'. $category->description . '</p>';
echo '<p> Post Count: '. $category->count . '</p>';
}
?>

当前自定义文章没有大分类，获取1级分类和子分类

图片写在分类的说明里

     <?php $taxonomies = get_terms( array(
  'taxonomy' => 'introduction-category','orderby'   => 'ID','order' => 'ASC',
  'hide_empty' => false
) );

if ( !empty($taxonomies) ) :
  
  foreach( $taxonomies as $category ) {
    if( $category->parent == 0 ) {
     echo '<h2 >'. esc_attr( $category->name ) .'</h2><div class="list">';

      foreach( $taxonomies as $subcategory ) {
        if($subcategory->parent == $category->term_id) {?>
     <div class="item">
                        <a href="<?php bloginfo('url'); ?>/introduction-category/<?php echo esc_html( $subcategory->slug );?>"></a>
                        <div class="m-card__picture-area">
                            <div class="m-card__picture u-inner-hover-picture-zoom">
                            <img src="<?php echo term_description( $subcategory->term_id,'post_tag' ); ?>" alt="img">
                            </div>
                            <div class="m-card__caption">
                            <div class="m-card__caption-main"><?php echo esc_html( $subcategory->name );?></div>
                            
                            </div>
                        </div>
                    </div>
<?php 
        }
      }
      echo'</div>';
    }
  }
endif; ?>

获取meta_key匹配的分类

$args = array(
    'hide_empty' => false, 
  'meta_query' => array(
      array(
         'key'       => 'project_status',
         'value'     => 'New',
         'compare'   => '='
      )
 ));
$projects = get_terms( 'Projects', $args );

$terms = get_terms( array(
    'taxonomy' => 'tax_slug',
    'hide_empty' => false,
    'meta_query' => array(
        [
            'key' => 'meta_key_slug_1',
            'value' => 'desired value to look for'
        ]
    ),
    'meta_key' => 'meta_key_slug_2',
    'orderby' => 'meta_key_slug_2'

) );