Since the old versions of php are no longer supported, I am migrating my projects to MYSQLI and I have a problem, I do not know how to group them in an array, since my previous code was this:
$enero = mysql_fetch_array(mysql_query("SELECT SUM(kg_panela) AS r FROM dia_batido WHERE MONTH(fecha)=1 AND YEAR(fecha)='$año'"));
Any help please.