php - 如何从wordpress数据库get_results中获取数组值

Question

试图从我的 mysql 查询中回显数组值(在 Wordpress 片段中)

function get_customer_gain() {
  global $wpdb; 
  $users = $wpdb->get_results( "SELECT SUM(wp_wpdatatable_1.payback) FROM wp_wpdatatable_1");
  foreach( $users as $user ) {
    echo $user;
  }
}
add_shortcode('customer_gain', 'get_customer_gain');

我的 var_dump 是:
array(1) { [0]=> object(stdClass)#3098 (1) { ["SUM(wp_wpdatatable_1.payback)"]=> string(6) "183320"} }

所以基本上我试图回应那个 183320 号码

任何指导将不胜感激。

谢谢

Answer 1

嗨，欢迎来到 stackoverflow

您的代码必须更改为

function get_customer_gain() {
  global $wpdb; 
  $users = $wpdb->get_results( "SELECT SUM(wp_wpdatatable_1.payback) as sumed FROM wp_wpdatatable_1");
  foreach( $users as $user ) {
    echo $user->sumed;
  }
}
add_shortcode('customer_gain', 'get_customer_gain');