在Wordpress中循環投資組合Next/Previous Button

Question

我是php新手，所以我想獲得一些幫助。

我的客戶希望下一個和上一個按鈕在單個頁面組合中循環。那麼這是我正在使用的代碼。

<?php 
$prev_post = get_previous_post(); 
$next_post = get_next_post(); 
$prev_post_link = !empty($prev_post) ? get_permalink($prev_post->ID) : true; 
$next_post_link = !empty($next_post) ? get_permalink($next_post->ID) : true; 
if(!empty($prev_post) && empty($prev_post_thumb)) $prev_post_thumb = prev_next_post_format_icon($prev_post->ID); 
if(!empty($next_post) && empty($next_post_thumb)) $next_post_thumb = prev_next_post_format_icon($next_post->ID); 
?> 

當我使用真，對於前&下一個鏈接，它出現在第一和最後一個組合，但超鏈接將顯示爲http://1，而不是下一個投資組合。由於提前

這是我的html代碼：

<div class="dfd-controls mobile-hide"> 
<?php if(!empty($prev_post_link)) : ?> 
    <a href="<?php echo esc_url($prev_post_link); ?>" class="page-inner-nav nav-prev"> 
     <div class="dfd-controler prev"> 
     <div style="margin-top:7px; color:#fff;">Previous</div> 
      <!-- <div class="thumb prev"> 
       <?php echo $prev_post_thumb; ?> 
      </div> --> 
     </div> 
     <!--<div class="pagination-title">Previous Project</div> --> 
    </a> 
<?php endif; ?> 
<?php if(!empty($next_post_link)) : ?> 
    <a href="<?php echo esc_url($next_post_link); ?>" class="page-inner-nav nav-next"> 
     <div class="dfd-controler next"> 
      <div style="margin-top:7px; color:#fff;">Next</div> 
      <!-- <div class="thumb next"> 
       <?php echo $next_post_thumb; ?> 
      </div>--> 
     </div> 
     <!--<div class="pagination-title">Next Project</div>--> 
    </a> 
<?php endif; ?> 

Answer 1

變化值從真爲假。將變量設置爲true會給empty一個錯誤的值see here。

現在 '下一步' 如果有下一個職位將只顯示

你的PHP應該是：

$prev_post = get_previous_post(); 
$next_post = get_next_post(); 
$prev_post_link = !empty($prev_post) ? get_permalink($prev_post->ID) : false; 
$next_post_link = !empty($next_post) ? get_permalink($next_post->ID) : false; 
if(!empty($prev_post) && empty($prev_post_thumb)) $prev_post_thumb = prev_next_post_format_icon($prev_post->ID); 
if(!empty($next_post) && empty($next_post_thumb)) $next_post_thumb = prev_next_post_format_icon($next_post->ID); 

UPDATE：要讓帖子循環：

if(get_adjacent_post(false, '', true)) { 
    previous_post_link('%link', '<div class="dfd-controler prev"><div style="margin-top:7px; color:#fff;">Previous</div></div>'); 
} else { 
    $first = new WP_Query('posts_per_page=1&order=DESC'); $first->the_post(); 
     echo '<a href="' . get_permalink() . '"><div class="dfd-controler prev"><div style="margin-top:7px; color:#fff;">Previous</div></div></a>'; 
    wp_reset_query(); 
}; 

if(get_adjacent_post(false, '', false)) { 
    next_post_link('%link', '<div class="dfd-controler next"><div style="margin-top:7px; color:#fff;">Next</div></div>'); 
} else { 
    $last = new WP_Query('posts_per_page=1&order=ASC'); $last->the_post(); 
     echo '<a href="' . get_permalink() . '"><div class="dfd-controler next"><div style="margin-top:7px; color:#fff;">Next</div></div>'; 
    wp_reset_query(); 
};