我有一个功能，当一篇文章在三天后在CPT内发布时，页面会重定向到另一个URL/PERMALINK。

代码如下：

add_action(\'template_redirect\', \'check_the_date_for_stats\');

function check_the_date_for_stats() {
  if ( is_singular(\'debate\') ) { // adjust myCPT with your real cpt name
    $pl = get_permalink( get_queried_object() ); // permalink
    $is_stats = array_key_exists( \'stats\', $GLOBALS[\'wp_query\']->query ); // is stats?
    $is_cm = array_key_exists( \'comments\', $GLOBALS[\'wp_query\']->query ); // is comments?
    $ts = mysql2date(\'Ymd\', get_queried_object()->post_date_gmt ); // post day
    $gone = ($ts + 3) < gmdate(\'Ymd\'); // more than 3 days gone?
    if ( $gone && ( ! $is_stats && ! $is_cm ) ) {
       // more than 3 days gone and not is stats => redirect to stats
       wp_redirect( trailingslashit($pl) . \'/stats\' );
       exit();
    } elseif( ! $gone && ( $is_stats || $is_cm ) ) {
       // we are in 3 days frame and trying to access to stats => redirect to post
       wp_redirect( $pl );
       exit();
    }
  }
}

有没有可能在3天后向所有注册用户发送一封带有标准消息的电子邮件，如果有，我该怎么做？我知道这个功能：

<?php wp_mail( $to, $subject, $message, $headers, $attachments ); ?>但我不知道如何将其与我的功能链接，以便在三天后向所有注册用户发送电子邮件。

有人能给我一些提示，告诉我如何才能做到这一点吗？谢谢

} elseif( ! $gone && ( $is_stats || $is_cm ) ) {
   // we are in 3 days frame and trying to access to stats => redirect to post

   // Start the code to send the emails
   $subject = \'3 days have passed\';
   $users = get_users();
   foreach($users as $user) {
      $message = \'Hello \'.$user->display_name.\', \'.PHP_EOL;
      $message .= \'The 3 days have past since the post.\';
      wp_mail($user->user_email, $subject, $message);
   }
   // End the code to send the emails

   wp_redirect( $pl );
   exit();
}