wordpress 如何在wordpress中显示所有类别？
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how to display all categories in wordpress?
提问by Clorge32
I used this code:
我使用了这个代码：
$categories = wp_get_post_categories(get_the_ID());
foreach($categories as $category){
echo '<div class="col-md-4"><a href="' . get_category_link($category) . '">' . get_cat_name($category) . '</a></div>';
}
but return only one category, how can i get all the categories?
但只返回一个类别，我怎样才能获得所有类别？
回答by Simon Pollard
In the code you gave us you are selected the categories selected for the specific post get_the_ID() is doing that part. However you would be best off using another function get_categories() https://developer.wordpress.org/reference/functions/get_categories/which you would do like so:
在您给我们的代码中，您选择了为 get_the_ID() 正在执行该部分的特定帖子选择的类别。但是，您最好使用另一个函数 get_categories() https://developer.wordpress.org/reference/functions/get_categories/您会这样做：
$categories = get_categories();
foreach($categories as $category) {
echo '<div class="col-md-4"><a href="' . get_category_link($category->term_id) . '">' . $category->name . '</a></div>';
}
You can also pass through arguments to be more specific (if needed) - see https://developer.wordpress.org/reference/functions/get_terms/for details on what you can pass through
您还可以传递更具体的参数（如果需要） -有关您可以传递的内容的详细信息，请参阅https://developer.wordpress.org/reference/functions/get_terms/
回答by Josh Bradley
You can also use wp_list_categories and pass arguments to it to show only what you need. A full list of arguments can be found in the codex: https://developer.wordpress.org/reference/functions/wp_list_categories
您还可以使用 wp_list_categories 并将参数传递给它以仅显示您需要的内容。完整的参数列表可以在代码中找到：https: //developer.wordpress.org/reference/functions/wp_list_categories
This will output all categories (even if they're empty) indented to indicate hierarchy.
这将输出缩进以指示层次结构的所有类别（即使它们是空的）。
$args = array(
'child_of' => 0,
'current_category' => 0,
'depth' => 0,
'echo' => 1,
'exclude' => '',
'exclude_tree' => '',
'feed' => '',
'feed_image' => '',
'feed_type' => '',
'hide_empty' => 0,
'hide_title_if_empty' => false,
'hierarchical' => true,
'order' => 'ASC',
'orderby' => 'name',
'separator' => '<br />',
'show_count' => 0,
'show_option_all' => '',
'show_option_none' => __( 'No categories' ),
'style' => 'list',
'taxonomy' => 'category',
'title_li' => __( 'Categories' ),
'use_desc_for_title' => 1,
);
var_dump( wp_list_categories($args) );
回答by WordpressDave
like this :
像这样 ：
<?php
$categories = get_categories( array(
'orderby' => 'name',
'order' => 'ASC'
) );
foreach( $categories as $category ) {
echo '<div class="col-md-4"><a href="' . get_category_link($category->term_id) . '">' . $category->name . '</a></div>';
}
