我在Wordpress中为接受数组作为参数的单个事件声明了一个操作：

$asins = array(); //I had to declare this since I\'m getting a notice of undefined variable if I don\'t

add_action(\'z_purge_products_cache\', array($this, \'purge_products_cache\', $asins));

我也尝试了这个，但它也不执行操作：

add_action(\'z_purge_products_cache\', array($this, \'purge_products_cache\'));

然后我安排：

wp_schedule_single_event(time() + 20, \'z_purge_products_cache\', $asins_r);

然后，wp cron执行操作后将调用以下函数：

public function purge_products_cache($asins){
  //send email here
}

有什么想法吗？

add_action(\'z_purge_products_cache\', array($this, \'purge_products_cache\'));

wp_schedule_single_event(time() + 20, \'z_purge_products_cache\', array($asins_r));

  function email_friends( $post_ID )  
{
   $friends = \'[email protected], [email protected]\';
   wp_mail( $friends, "sally\'s blog updated", \'I just put something on my blog: http://blog.example.com\' );

   return $post_ID;
}
add_action( \'publish_post\', \'email_friends\' );