DATEDIFF不存在

Question

这是我的查询

$sql= "select count(event_id) as cnd from wp_em_events where DATEDIFF (event_end_date, CURDATE()) > 0 and event_status= 1";

$result= mysql_query($sql);

$row= mysql_fetch_assoc($result);

return $row['cnd'];

这在localhost中工作正常，但在服务器中没有，并且返回此错误1305 - FUNCTION DATEDIFF不存在

Answer 1

尝试将DATEDIFF放在括号中：

 $sql= "select count(event_id) as cnd from wp_em_events where 
        (DATEDIFF (event_end_date, CURDATE())) > 0 and event_status= 1";

我认为phpMyAdmin中还有一个错误，这意味着你必须在最后放置一个LIMIT才能让它工作，所以试试这个：

$sql= "select count(event_id) as cnd from wp_em_events where 
        (DATEDIFF (event_end_date, CURDATE())) > 0 and event_status= 1 LIMIT 0,10";