24 hours of values

Question

I have a sql table : date (Y-m-d) / time (00:00:00) / power (INT)

When I select a date from an inline datepicker, I am trying to post 3 HighCharts graph (one-24 hours, t

Answer 1

You need a loop to walk over the rows:

$sql = "
SELECT HOUR(time) as h, power
FROM feed 
WHERE date = '".$choice."' 
ORDER BY HOUR(time)"; 

$res = mysql_query($sql) or die('sql='.$sql."\n".mysql_error()); 

while($row = mysql_fetch_assoc($res)) {
    echo $row['h'].":".$row['power']'
'; 
}

This will give you the power per day for a given month:

$sql = "
SELECT DAY(date) as d, SUM(power) as powerday
FROM feed 
WHERE MONTH(date) = '".$month."' 
GROUP BY DAY(date) 
ORDER BY DAY(date)"; 

$res = mysql_query($sql) or die('sql='.$sql."\n".mysql_error()); 

while($row = mysql_fetch_assoc($res)) {
    echo $row['d'].":".$row['powerday']'
'; 
}