WordPress Version: 6.3
/**
* Gets a user's most recent post.
*
* Walks through each of a user's blogs to find the post with
* the most recent post_date_gmt.
*
* @since MU (3.0.0)
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id User ID.
* @return array Contains the blog_id, post_id, post_date_gmt, and post_gmt_ts.
*/
function get_most_recent_post_of_user($user_id)
{
global $wpdb;
$user_blogs = get_blogs_of_user((int) $user_id);
$most_recent_post = array();
/*
* Walk through each blog and get the most recent post
* published by $user_id.
*/
foreach ((array) $user_blogs as $blog) {
$prefix = $wpdb->get_blog_prefix($blog->userblog_id);
$recent_post = $wpdb->get_row($wpdb->prepare("SELECT ID, post_date_gmt FROM {$prefix}posts WHERE post_author = %d AND post_type = 'post' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1", $user_id), ARRAY_A);
// Make sure we found a post.
if (isset($recent_post['ID'])) {
$post_gmt_ts = strtotime($recent_post['post_date_gmt']);
/*
* If this is the first post checked
* or if this post is newer than the current recent post,
* make it the new most recent post.
*/
if (!isset($most_recent_post['post_gmt_ts']) || $post_gmt_ts > $most_recent_post['post_gmt_ts']) {
$most_recent_post = array('blog_id' => $blog->userblog_id, 'post_id' => $recent_post['ID'], 'post_date_gmt' => $recent_post['post_date_gmt'], 'post_gmt_ts' => $post_gmt_ts);
}
}
}
return $most_recent_post;
}