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主题目录下的functions.php（请备份再操作）文件里即可

1. /* 可选参数: */
2. $zg_cookie_expire =360;// cookie过期时间，默认值是360天
3. $zg_number_of_posts =10;// 显示篇数，默认值是10。
4. $zg_recognize_pages =true;
5. 
6. /* 此行后不要编辑 */
7. function zg_lwp_header(){
8. if(is_single()){
9.         zg_lw_setcookie();
10. }elseif(is_page()){
11. global $zg_recognize_pages;
12. if($zg_recognize_pages ===true){
13.             zg_lw_setcookie();
14. }
15. }
16. }
17. 
18. function zg_lw_setcookie(){
19. global $wp_query;
20.     $zg_post_ID = $wp_query->post->ID;
21. if(! isset($_COOKIE["WP-LastViewedPosts-coding3min"])){
22.         $zg_cookiearray = array($zg_post_ID);
23. }else{
24.         $zg_cookiearray = unserialize(stripslashes($_COOKIE["WP-LastViewedPosts-coding3min"]));
25. if(! is_array($zg_cookiearray)){
26.             $zg_cookiearray = array($zg_post_ID);
27. }
28. }
29. if(in_array($zg_post_ID, $zg_cookiearray)){
30.         $zg_key = array_search($zg_post_ID, $zg_cookiearray);
31.         array_splice($zg_cookiearray, $zg_key,1);
32. }
33.     array_unshift($zg_cookiearray, $zg_post_ID);
34. global $zg_number_of_posts;
35. while(count($zg_cookiearray)> $zg_number_of_posts){
36.         array_pop($zg_cookiearray);
37. }
38.     $zg_blog_url_array = parse_url(get_bloginfo('url'));
39.     $zg_blog_url = $zg_blog_url_array['host'];
40.     $zg_blog_url = str_replace('www.','', $zg_blog_url);
41.     $zg_blog_url_dot ='.';
42.     $zg_blog_url_dot .= $zg_blog_url;
43.     $zg_path_url = $zg_blog_url_array['path'];
44.     $zg_path_url_slash ='/';
45.     $zg_path_url .= $zg_path_url_slash;
46. global $zg_cookie_expire;
47.     setcookie("WP-LastViewedPosts-coding3min", serialize($zg_cookiearray),(time()+($zg_cookie_expire*86400)), $zg_path_url, $zg_blog_url_dot,0);
48. }
49. 
50. function zg_recently_viewed(){
51.     echo '<ul class="viewed_posts">';
52. if(isset($_COOKIE["WP-LastViewedPosts-coding3min"])){
53.         $zg_post_IDs = unserialize(stripslashes($_COOKIE["WP-LastViewedPosts-coding3min"]));
54. foreach($zg_post_IDs as $value){
55. global $wpdb;
56.             $zg_get_title = $wpdb->get_results("SELECT post_title FROM $wpdb->posts WHERE ID = '$value+0' LIMIT 1");
57. foreach($zg_get_title as $zg_title_out){
58.                 echo "<li><a href=\"". get_permalink($value+0)."\" title=\"". $zg_title_out->post_title ."\">". $zg_title_out->post_title ."</a></li>\n";
59. }
60. }
61. }else{
62. }
63.     echo '</ul>';
64. }
65. 
66. add_action('get_header','zg_lwp_header');

然后在你的正文右边添加小工具：增强文本中插入以下代码。

1. ​

1. <?php
2. if(function_exists('zg_recently_viewed')){
3. if(isset($_COOKIE["WP-LastViewedPosts-coding3min"])){
4.    zg_recently_viewed();
5. }
6. }?

1. >

效果图如下：

• 输入编号：6400，直达文章
• 输入m|M，直达目录列表