子比主题底部添加渐变色背景统计模块

<?php
//实现侧边栏文本工具运行PHP代码
add_filter('widget_text', 'php_text', 99);
function php_text($text) {
if (strpos($text, '<' . '?') !== false) {
ob_start();
eval('?' . '>' . $text);
$text = ob_get_contents();
ob_end_clean();
}
return $text;
}

/*底部统计开始*/
function dbtj(){
    global $wpdb;
    $users = $wpdb->get_var("SELECT COUNT(ID) FROM $wpdb->users");
    $count_posts = wp_count_posts(); 
     $published_posts =$count_posts->publish;
    $count=0;
     $views= $wpdb->get_results("SELECT * FROM $wpdb->postmeta WHERE meta_key='views'");
     foreach($views as $key=>$value){
     $meta_value=$value->meta_value;
     if($meta_value!=' '){
      $count+=(int)$meta_value;
      }
     }
    $today = getdate();
     $query = new WP_Query( 'year=' . $today["year"] . '&monthnum=' . $today["mon"] . '&day=' . $today["mday"]);
     $postsNumber = $query->found_posts;
    $wdyx_time = floor((time()-strtotime("2022-5-28"))/86400);
echo'<div id="caired">
<div class="cai">
        <ul>
          <li>
            <span>'.$users.'</span>
            <p>会员总数</p>
          </li>
          <li>
            <span>'.$published_posts.'</span>
            <p>文章总数</p>
          </li>
          <li>
            <span>'.$count.'</span>
            <p>浏览总数</p>
          </li>
          <li>
            <span>'.$postsNumber.'</span>
            <p>今日发布</p>
          </li>
          <li>
            <span>'.$wdyx_time.'天</span>
            <p>稳定运行</p>
          </li>
        </ul>
        </div>
  </div>';
 }
/*底部统计结束*/