Question

我不确定这是否有效。我试图使用concat的结果作为普通的PHP代码。但我得到纯文本结果。这是我的代码：
查询1：

T obj;
boost::function<void (const sensor_msgs::PointCloud2&)> callback = 
    [obj] (const sensor_msgs::PointCloud2& msg) {
    // Do something here 
    }
auto sub = ros_nh.subscribe<sensor_msgs::PointCloud>(topic, 1, callback);

查询2：

$resultdc = $wpdb->get_row($wpdb->prepare("SELECT user_id, goals_date, YEAR(goals_date) AS yearof, DATE_SUB(DATE(goals_date), INTERVAL DAYOFWEEK(goals_date) -1 DAY) AS weekof, TIME_FORMAT(SEC_TO_TIME(SUM(TIME_TO_SEC(end_time))-SUM(TIME_TO_SEC(start_time))), '%H:%i') AS st_time, SUM(TIME_TO_SEC(end_time)-TIME_TO_SEC(start_time)) AS ltime, $sumleads $sumgoals FROM $table WHERE user_id IN($members) AND DATE_SUB(DATE(goals_date), INTERVAL DAYOFWEEK(goals_date) -1 DAY) = DATE_SUB(DATE('$goals_date'), INTERVAL DAYOFWEEK('$goals_date') -1 DAY) GROUP BY weekof"));

结果：

$dcharts = $wpdb->get_row($wpdb->prepare("SELECT GROUP_CONCAT('[\"',goalname,' - \'.\$resultdc->LT',goal_id,'.\'\", \'.\$resultdc->LT',goal_id,'.\']') AS dchart FROM wpgetyp_ppi_goalsettings WHERE user_id = '$head' AND goaltype ='leadtype' GROUP BY user_id"));

我想从第一次查询中显示 $ resultdc-＆gt; * 的结果。或者更好的主意。非常感谢你。

Answer 1

结果中有美元符号这一事实意味着您的报价不正确。尝试使用：

"SELECT GROUP_CONCAT(
          '[',
          goalname,
          ' - {$resultdc->LT}', 
          goal_id,
          '{$resultdc->LT}',
          goal_id,']') AS dchart 
FROM      wpgetyp_ppi_goalsettings 
WHERE     user_id = '{$head}' 
      AND goaltype ='leadtype' 
GROUP BY  user_id"

as sql-statement

使用GROUP_CONTACT结果作为普通的PHP代码或字符串

1 个答案: