How can I restart PHP code?

if (isset($_POST['submit']) && ($daysLeft == 7)){
	$stmt = $conn->prepare("UPDATE Profile SET Points= $points + $Points1 WHERE UserID=$UserID");
    $stmt->execute();
	
    echo " Well done!";
}else {
    
}
// after this i want to execute to repeat the process below.......


<pre>
$daysDiff = floor(strtotime($CurrDate) - strtotime($StartDate)) / (60 * 60 * 24); 
ceil($daysDiff); 
$daysLeft = ceil($Days - $daysDiff);
echo "<div class='countholder'>You currently have  ".$daysLeft." days to complete!</div>";