WordPress正文添加您最近看过的功能

相信你在网上绝对找到了很多类似的代码，但是没有一个是成功的，比如鸟叔给的代码,你可以在这个网址看看。

https://zmingcx.com/recently-viewed-articles.html

可能是因为比较老的代码了，稍微做一下修改

/* 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()) {
        globalzg_recognize_pages;
        if (zg_recognize_pages === true) {
            zg_lw_setcookie();
        }
    }
}

function zg_lw_setcookie() {
    globalwp_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);
    globalzg_number_of_posts;
    while (count(zg_cookiearray)>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('www.', '',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 asvalue) {
            global wpdb;zg_get_title = wpdb->get_results("SELECT post_title FROMwpdb->posts WHERE ID = 'value+0' LIMIT 1");
            foreach(zg_get_title as zg_title_out) {
                echo "<li><a href=\"". get_permalink(value+0) . "\" title=\"". zg_title_out->post_title . "\">".zg_title_out->post_title . "</a></li>\n";
            }
        }
    } else {
    }
    echo '</ul>';
}

add_action('get_header','zg_lwp_header');

把上面的代码添加到functions.php里，然后在你的正文右边添加小工具：增强文本。插入以下代码。

<?php 
if (function_exists('zg_recently_viewed')){
if (isset($_COOKIE["WP-LastViewedPosts-coding3min"])) {
   zg_recently_viewed();
}
} ?>

ps: 我一个堂堂的工程师，为什么要学那么多php，心累。