WordPress正文添加您最近看过的功能

让网站记住读者的浏览历史，让读者很方便地知道他最近阅读了你博客的哪些文章。这一举措，对于提高用户体验应该是不错的方法。那么，如何为你的WordPress站点添加这个功能？一起往下看吧！

把下面的代码添加到functions.php（请备份再操作）里即可

代码语言：javascript

复制

/* 可选参数: */
$zg_cookie_expire = 360; // cookie过期时间，默认值是360天
$zg_number_of_posts = 10; // 显示篇数，默认值是10。
$zg_recognize_pages = true;
/* 此行后不要编辑 */

function zg_lwp_header() {

if (is_single()) {

zg_lw_setcookie();

} else if (is_page()) {

global $zg_recognize_pages;

if ($zg_recognize_pages === true) {

zg_lw_setcookie();

}

}

}
function zg_lw_setcookie() {

global $wp_query;

zg_post_ID = wp_query->post->ID;

if (! isset($_COOKIE["WP-LastViewedPosts-coding3min"])) {

zg_cookiearray = array(zg_post_ID);

} else {

zg_cookiearray = unserialize(stripslashes(_COOKIE["WP-LastViewedPosts-coding3min"]));

if (! is_array($zg_cookiearray)) {

zg_cookiearray = array(zg_post_ID);

}

}

if (in_array(zg_post_ID, zg_cookiearray)) {

zg_key = array_search(zg_post_ID, $zg_cookiearray);

array_splice(zg_cookiearray, zg_key, 1);

}

array_unshift(zg_cookiearray, zg_post_ID);

global $zg_number_of_posts;

while (count(zg_cookiearray) &gt; zg_number_of_posts) {

array_pop($zg_cookiearray);

}

$zg_blog_url_array = parse_url(get_bloginfo('url'));

zg_blog_url = zg_blog_url_array['host'];

zg_blog_url = str_replace(&#39;www.&#39;, &#39;&#39;, zg_blog_url);

$zg_blog_url_dot = '.';

zg_blog_url_dot .= zg_blog_url;

zg_path_url = zg_blog_url_array['path'];

$zg_path_url_slash = '/';

zg_path_url .= zg_path_url_slash;

global $zg_cookie_expire;

setcookie("WP-LastViewedPosts-coding3min", serialize(zg_cookiearray), (time()+(zg_cookie_expire*86400)), zg_path_url, zg_blog_url_dot, 0);

}
function zg_recently_viewed() {

echo '<ul class="viewed_posts">';

if (isset($_COOKIE["WP-LastViewedPosts-coding3min"])) {

zg_post_IDs = unserialize(stripslashes(_COOKIE["WP-LastViewedPosts-coding3min"]));

foreach (zg_post_IDs as value) {

global $wpdb;

zg_get_title = wpdb->get_results("SELECT post_title FROM wpdb-&gt;posts WHERE ID = &#39;value+0' LIMIT 1");

foreach(zg_get_title as zg_title_out) {

echo "<li><a href=&#34;". get_permalink(value+0) . &#34;\&#34; title=\&#34;&#34;. zg_title_out->post_title . "&#34;>". $zg_title_out->post_title . "</a></li>\n";

}

}

} else {

}

echo '</ul>';

}
add_action('get_header','zg_lwp_header');