Wordpress下一篇文章

Question

code is not running. the name does not appear. I looked at all the sites but couldn't find anything

<?php 
$prev_post  = get_previous_post();
$prev_title = strip_tags(str_replace('"', '', $prev_post->post_title));
$prev_ID    = strip_tags(str_replace('"', '', $prev_post->ID));
$prev       = previous_posts_link($prev_ID);
$prevlink   = get_permalink($prev_ID);
?>

<div class="previuos">
    <a href="<?php echo $prevlink ?>"> <?php print_r($prev_post->post_title) ?></a>
</div>
<?php
$next_post  = get_next_post();
$next_title = strip_tags(str_replace('"', '', $next_post->post_title));

$next_id    = strip_tags(str_replace('"', '', $next_post->ID));
$next       = next_posts_link($next_id);
$nextlink   = get_permalink($next_id);
?>
<div class="next">
    <a href="<?php echo $nextlink ?>"> <?php echo $next_title; ?></a>
</div>

Answer 1

I see a difference in both lines with an <a> -tag, because in the first one you write print_r($prev_post->post_title) , but the second one has echo $next_title . You might want to try echo for both values, so your code becomes:

<a href="<?php echo $prevlink ?>"> <?php echo($prev_title); ?></a>

The method print_r() is better suited when you want to print output for an array, so echo is probably what you need here, because you expect text, not an array.

If that is not working, please provide us a Minimal, Complete, and Verifiable example because we might use other input than you are using.