wordpress如何实现版权年份动态显示

wordpress建站中，如何实现版权年份动态显示（自动变化年份），下面web建站小编给大家简单介绍一下！​

找到主题下functions.php​文件，新增以下代码：

function copyrightDate() {
  global $wpdb;
  $copyright_dates = $wpdb->get_results("
   SELECT
   YEAR(min(post_date_gmt)) AS firstdate,
   YEAR(max(post_date_gmt)) AS lastdate
   FROM
   $wpdb->posts
   WHERE post_status = 'publish'
  ");
  if($copyright_dates) {
    $date = date('Y-m-d');
    $date = explode('-', $date);
    $copyright = "Copyright © " . $copyright_dates[0]->firstdate;
    if($copyright_dates[0]->firstdate != $date[0]) {
      $copyright .= '-' . $date[0];
    }
    echo $copyright;
  }
}

调用代码：

<?php copyrightDate();?>