将下面的代码添加到主题的 functions.php

    1. function ribs_baidu_check($url) {
    2.     global $wpdb;
    3.     $post_id = (null === $post_id) ? get_the_ID() : $post_id;
    4.     $baidu_record = get_post_meta($post_id, 'ribs_baidu_record', true);
    5.     if ($baidu_record != '收录') {
    6.         $url = 'http://www.baidu.com/s?wd=' . $url;
    7.         $curl = curl_init();
    8.         curl_setopt($curl, CURLOPT_URL, $url);
    9.         curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    10.         $rs = curl_exec($curl);
    11.         curl_close($curl);
    12.         if (!strpos($rs, '没有找到')) {
    13.             if ($baidu_record == '未收录') {
    14.                 update_post_meta($post_id, 'ribs_baidu_record', '收录');
    15.             } else {
    16.                 add_post_meta($post_id, 'ribs_baidu_record', '收录', true);
    17.             }
    18.             return '收录';
    19.         } else {
    20.             if ($baidu_record == false) {
    21.                 add_post_meta($post_id, 'ribs_baidu_record', '未收录', true);
    22.             }
    23.             return '未收录';
    24.         }
    25.     } else {
    26.         return '收录';
    27.     }
    28. }
    29. function ribs_baidu_record() {
    30.     if (ribs_baidu_check(get_permalink()) == '收录') {
    31.         echo '<a target="_blank" title="点击查看" rel="external nofollow" href="http://www.baidu.com/s?wd=' . get_the_title() . '" >收录</a>';
    32.     } else {
    33.         echo '<a rel="external nofollow" title="点击提交，谢谢您！" target="_blank" href="http://zhanzhang.baidu.com/sitesubmit/index?sitename=' . get_permalink() . '" >未收录</a>';
    34.     }
    35. }

    在网页适当位置添加

    <?php ribs_baidu_record(); ?>

    你不希望所有人看到的话，加上一个判断登陆人权限的代码

    <?php if (current_user_can('level_10')){ribs_baidu_record();}; ?>

    想要在后台，看见的话，在 functions.php 里加

    //后台文章管理列表显示收录情况
add_filter('manage_posts_columns', 'my_add_posts_columns', 5);
add_action('manage_posts_custom_column', 'my_custom_posts_columns', 5, 2);
function my_add_posts_columns($defaults) {
    $defaults['ribs_baidu_record'] = '百度收录';
    return $defaults;
}
function my_custom_posts_columns($column_name, $id) {
    if ($column_name === 'ribs_baidu_record') {
        echo get_post_meta(get_the_ID(), 'ribs_baidu_record', true);
    }
}