需要从MySQL数据库中获取今天的结果

Question

所以，我试图向那些为我工作的人展示他们当天做了多少......无论如何你可以告诉我为什么这只给了我一个＆＃34; 0＆＃34 ;返回？

$sql = "
SELECT SUM(money_earned) as money_earned 
  FROM staff_pay 
 WHERE DATE(time_charged)=CURDATE() 
   AND staff_id={$_SESSION['staff_id']}
";

Answer 1

试试这个

$sid = $_SESSION['staff_id'];
$sql = "
SELECT  SUM(money_earned) as money_earned 
FROM staff_pay 
WHERE DATE(time_charged)=CURDATE() 
AND staff_id=$sid";