获取最近日期的最后一条记录的问题 - PHP

Question

As the title says I have this issue trying to get that record, my query works directly in PHPMyAdmin but when I use it in the code with PHP it gets the second last record

My second last record has this values:

id_record = 17292 id_user = 6 my_date = 2016-12-31 11:09:08

My last record:

id_record = 17618 id_user = 6 my_date = 2017-01-05 13:37:21

This is the query I'm using to achieve this

SELECT id_record FROM my_table WHERE my_date = (SELECT MAX(my_date) FROM my_table WHERE id_user = 6 ORDER BY id_record DESC LIMIT 1)

When I use this query directly in PHPMyAdmin it works fine it shows the record with id 17618 but in the code in PHP it works but it gets the second last record ( 17292 ), I have no idea why is happening this, do you have some idea?, I hope you can help me, thanks.

This is the PHP code

$last_record = mysql_query("SELECT id_record FROM my_table WHERE my_date = (SELECT MAX(my_date) FROM my_table WHERE id_user = 6 ORDER BY id_record DESC LIMIT 1)") or die (mysql_error());
$last_record = mysql_fetch_assoc($last_record);
$last_record = $last_record['id_record'];

Answer 1

Why you use a subquery ? you can directly select the last record like this:

SELECT id_record 
FROM my_table 
WHERE id_user = 6 
ORDER BY id_record DESC
LIMIT 1;