fetching data and trying to create a loop to determine lowest value - php

Question

This is going to be a newbie question, so bear with me.
I have a database in which I fetch the data, I would like to create a for loop which will loop through the fetched data and will determine what the lowest time is. This is how my loop looks like: (take into consideration I only took the part out that seemed usefull to post, and $row['timePV'] is a time based value such as: 23:00)
$arrayCount = array();
while ($row = mysqli_fetch_assoc($result)) {
echo "<tr>";
echo "<td>";
echo $row['timePV'];
echo "</td>";
echo "</tr>";
array_push($arrayCount,$row['timePV']);
}
echo "</table>";
}
$c = 100000;
for ($i = 0; $i < sizeof($arrayCount); $i++) {
$arrayCount[$i];
if ($arrayCount[$i] < $c) {
$c = $arrayCount[$i];
echo $c;
} else {
//do something else
}
}
So what I want to achieve: Loop through the stored data and take out the lowest value and display that value, but it only displays all the values.
So my question: How can I make the loop in such way that it will take the lowest value and display it to me?

Answer 1

You don't have to do another loop to calculate lowesttime. You can do it in that while loop with checking previous and present timePv like following
//$timeExample=[["timePV"=>"11:30"],["timePV"=>"11:20"],["timePV"=>"13:30"]];//example of data
$lowestTime = null;//Deault defined it null
while ($row = mysqli_fetch_assoc($result)) {
//foreach($timeExample as $row){ //foreach for run example
if($lowestTime){
$lowestTime=min($lowestTime,strtotime($row['timePV']));//If not null we also get min lowerstTime from previous //and current one
}else{
$lowestTime=strtotime($row['timePV']);//It will work for only first iteration since $lowestTime will null in //first iteration
}
echo "<tr>";
echo "<td>";
echo $row['timePV'];
echo "</td>";
echo "</tr>";
}
echo date("h:i",$lowestTime);//11:20 example out