php - WordPress 自定义类别 显示图像

Question

我有一个问题，我试图在一个类别中的不同自定义帖子上显示国家国旗，我使用的代码有效，但是当自定义帖子有超过 1 个类别分配时，图像不显示。

这是我的代码:

<?php
 $terms = get_the_terms(get_the_ID(), 'story_category' );
if (  $terms[0]->slug == "usa-freebies" ) :?>
 <img class="country" width="23" src="http://www.iconarchive.com/download/i47330/icons-land/vista-flags/United-States-Flag-1.ico">
<?php elseif ( $terms[0]->slug == "uk-freebies" ) : ?>
 <img class="country" width="23" src="http://www.iconarchive.com/download/i47324/icons-land/vista-flags/United-Kingdom-Flag-1.ico">
 <?php elseif ( $terms[0]->term_taxonomy_id == "698" ) :?>
 <img class="country" width="21" src="https://cdn2.iconfinder.com/data/icons/Siena/256/globe%20blue.png">
<?php endif; ?>

Answer 1

现在，您正在显示 $terms[0] 。 0 是 $terms 数组的第一个位置，因此它将始终显示第一个类别。您将必须修改代码并运行 foreach 循环:

<?php

    $terms = get_the_terms(get_the_ID(), 'story_category' );

    foreach($terms as $current_term){
        if (  $current_term->slug == "usa-freebies" ) :?>
         <img class="country" width="23" src="http://www.iconarchive.com/download/i47330/icons-land/vista-flags/United-States-Flag-1.ico">
        <?php elseif ( $current_term->slug == "uk-freebies" ) : ?>
         <img class="country" width="23" src="http://www.iconarchive.com/download/i47324/icons-land/vista-flags/United-Kingdom-Flag-1.ico">
         <?php elseif ( $current_term->term_taxonomy_id == "698" ) :?>
         <img class="country" width="21" src="https://cdn2.iconfinder.com/data/icons/Siena/256/globe%20blue.png">
        <?php endif; 
    }
?>