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get_previous_post[获取上一篇文章函数]

发布于 2022.04.11

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WordPress函数get_previous_post用于获取上一篇文章，可以限制返回相同分类的上一篇文章，…

WordPress函数get_previous_post用于获取上一篇文章，可以限制返回相同分类的上一篇文章，需要用在文章页面模板里。

1	get_previous_post( boolean $in_same_cat, string $excluded_categories )

函数参数

$in_same_cat
布尔值，默认值：false
如果为true，则输出与当前文章相同分类下的上一篇文章。
$excluded_categories
字符串值，默认为空
要排除的分类ID

函数返回值

函数返回值示例：

WP_Post Object (

[ID] => 2283

[post_author] => 1

[post_date] => 2019–09–13 21:39:48

[post_date_gmt] => 2019–09–13 13:39:48

[post_content] => 文章内容

[post_title] => 文章标题

[post_excerpt] =>文章摘要

[post_status] => publish

[comment_status] => open

[ping_status] => closed

[post_password] =>

[post_name] =>文章别名

[to_ping] =>

[pinged] =>

[post_modified] => 2019–09–13 21:39:48

[post_modified_gmt] => 2019–09–13 13:39:48

[post_content_filtered] =>

[post_parent] => 0

[guid] => https://www.beizigen.com/?p=2283

[menu_order] => 0

[post_type] => post

[post_mime_type] =>

[comment_count] => 0

[filter] => raw

)

get_previous_post()函数使用示例

(1)输出上一篇文章链接，这里链接地址没有直接使用guid的值，而是使用get_permalink()函数获取伪静态链接。

<?php

$prev_post = get_previous_post();

if (!empty( $prev_post )) {

echo ‘<a href=”‘ . get_permalink($prev_post) . ‘”>’ . $prev_post->post_title . ‘</a>’;

}

(2)获取当前分类下的上一篇：

<?php

$prev_post = get_previous_post();

$prev_post_id = get_previous_post(‘id’);

if (!empty( $prev_post )&&get_previous_post(true)): ?>

</div>

<h3><?php echo ‘<a href=”‘ . get_permalink($prev_post) . ‘”>’ . $prev_post->post_title . ‘</a>’; ?></h3>

</div>

<?php endif; ?>

(3)获取自定义分类上下篇：

<?php

$prev_post = get_previous_post();

if($prev_post) {

$prev_title = strip_tags(str_replace(‘”‘, ”, $prev_post->post_title));

echo “t” . ‘<a rel=”prev” href=”‘ . get_permalink($prev_post->ID) . ‘” title=”‘ . $prev_title. ‘” class=” “>« Previous post<br /><strong>"’. $prev_title . ‘"</strong></a>’ . “n”;

}

$next_post = get_next_post();

if($next_post) {

$next_title = strip_tags(str_replace(‘”‘, ”, $next_post->post_title));

echo “t” . ‘<a rel=”next” href=”‘ . get_permalink($next_post->ID) . ‘” title=”‘ . $next_title. ‘” class=” “>Next post »<br /><strong>"’. $next_title . ‘"</strong></a>’ . “n”;

}