Build array from query for a total time calculation - php

Question

I have this code that draws the data from the db, that when run displays the time totals for each record in a hh:mm format, eg 00:35 for 35 minutes.
$query="SELECT * FROM data1 ORDER BY id DESC";
$result=mysql_query ($query);
$num=mysql_num_rows ($result);
mysql_close();
$i=0;
while ($i < $num) {
$time_ttl=mysql_result($result,$i,"time_ttl");
echo $time_ttl . "<br>";
++$i;
}
The result from the query looks like this:
00:35
00:25
00:10
Total time: 01:10 (1 hour 10 minutes)
Depending on the query, the number of totals will vary, and I want to calculate a grand total depending on the query.
I tried using this code to calculate the time, which works, but I am not sure how to connect the incoming data inside the 'while { }' part:
$times = array();
$times[] = "00:35";
$times[] = "00:25";
$times[] = "00:10";
function ttl_time($times) {
foreach ($times as $time) {
list($hour, $minute) = explode(':', $time);
$minutes += $hour * 60;
$minutes += $minute;
}
$hours = floor($minutes / 60);
$minutes -= $hours * 60;
$ttl_time = sprintf('%02d:%02d', $hours, $minutes);
}
The code calculates the total time correctly, but I am looking for guidance how to build an array based on the query to feed into the ttl_time function so I can connect the incoming query data to the function.
I did try this:
$result2 = mysql_query("SELECT sum(time_ttl) FROM data1");
while ($rows = mysql_fetch_array($result2)) {
echo $rows['sum(time_ttl)'];
}
But it returns the wrong result

Answer 1

If I understand your question correctly...
$i=0; $result_times = array();
while ($i < $num) {
$result_times[] = mysql_result($result,$i,"time_ttl");
++$i;
}
Then you can pass $result_times to your ttl_time function.
As for your other attempted solution (using sum) it depends on the data type. This may be helpful: calculate a sum of type time using sql