WordPress 怎样获取同分类下文章的上一篇与下一篇

get_previous_post(true)

get_next_post(true)

// Create a new filtering function that will add our where clause to the query

function date_filter_where( $where = '' ) {

global $post;

$where .= " AND post_date >= '".$post->post_date."'";

return $where;

}

//then create your own get previous post function which will take an array of categories eg: 

// $cats = array('1','2');

function my_get_previous_post($cats){

global $post;

$temp = $post;

$args = array(

'posts_per_page' => 1,

'post_type' => 'post',

'post_status' => 'publish',

'category__and' => $cats

);

add_filter( 'posts_where','date_filter_where' );

$q = new WP_Query($args);

remove_filter( 'posts_where','date_filter_where' );

while ($q->have_posts()){

$q->the_post;

echo '<a href="'.get_permalink($post->ID).'">'.get_the_title($post->ID).'</a>';

}

$post = $temp;

wp_reset_query();

}