I have the string $niveis with the following values (example):
3,8,10
Using this string, I need to count the number of rows in table content, where the access matches any of these 3 values.
For example, if table content is:
id access
1 2
2 3
3 3
4 7
5 8
6 9
7 10
8 10
Should return 5.
I tried the following query in PHP:
$query="SELECT count(id) FROM #__content WHERE access =$niveis";
But it isn't working, can anyone help?
You can use IN
keyword
SELECT COUNT(id)
FROM #__content
WHERE access IN ($niveis)
You can use find_in_set()
:
select count(id)
from #__content
where find_in_set(access, $niveis) > 0;
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.