I have a .txt file that looks like this:
SamAccountName         : spiderman
Name                   : Parker, Peter
LastLogonDate          : 8/22/2019 6:08:17 AM
LastBadPasswordAttempt : 8/22/2019 11:30:58 AM
AccountExpires         : 0
SamAccountName         : ironman
Name                   : Stark, Tony
LastLogonDate          : 8/17/2019 8:39:51 AM
LastBadPasswordAttempt : 5/30/2019 4:59:39 AM
AccountExpires         : 0
SamAccountName         : captainamerica
Name                   : Rogers, Steve
LastLogonDate          : 8/19/2019 2:49:05 AM
LastBadPasswordAttempt : 6/24/2019 1:30:17 AM
AccountExpires         : 0
SamAccountName         : thor
Name                   : Odinson, Thor
LastLogonDate          : 7/25/2019 1:36:11 AM
LastBadPasswordAttempt : 7/25/2019 1:30:35 AM
AccountExpires         : 0
I now want to display that on my website as it is using PHP. I managed to do that, but somehow there always are those two unknows symbols and I don't know how to make what they mean, why they are there and how I can remove them. This is my code:
<!DOCTYPE html>
<html>
<body>
    <form action="" method="post" class="formbody">
    <div class="codetable">
    <?php
    $file = 'c:\marvel\display.txt';
    $f = fopen($file, "r") or exit("Unable to open file!");
    while(!feof($f))
    {
        echo fgets($f)."<br />";
    }
    fclose($f);
    ?>
    <div class="codelabel"> 
    </div>
    </div>
    </form>
</body>
</html>
Here are the unknown symbols I get:
Or is there another (better) way to display it?

 
    