让PHP脚本统计MySQL结果？

Question

我有一个网页，列出了使用下面的代码每个给定的每一天的结果。

$day_events = "SELECT * FROM tbl_events WHERE day='".$day_id."'"; 
    $events_result = mysql_query($day_events); 
    while($event_row=mysql_fetch_array($events_result)) { 
    $calendar.= "<span>".$event_row['event']."</span>"; 
    } 

如何修改这个以列出在...

SELECT * FROM tbl_events WHERE day='".$day_id."' 

发现事件的数量...查询？

Answer 1

$day_events = "SELECT COUNT(*) FROM tbl_events WHERE day='".$day_id."'"; 
print mysql_result(mysql_query($day_events),0) 

Answer 2

SELECT count(*) FROM tbl_events WHERE day ... 

顺便说一句，你可以简单地使用从您先前的查询mysql_num_rows()。

Answer 3

echo mysql_num_rows($evenets_result); 

寻找呢？

Answer 4

$events_count = mysql_num_rows(mysql_query($day_events));