Untitled

<?php
$exclude    = array('.','..');
$dir        = __DIR__ . '/images';
$files      = scandir($dir);
$files_ex   = array_values(array_diff($files, $exclude));
$rand       = rand(0,count($files_ex)-1);
?>

<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>

.center
{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 40%;
}
</style>
</head>

<body bgcolor="#d7dcd4">
we be debugging mofo
<br>
<img class="center" src="images/<?php echo $files_ex[$rand]; ?>">
<br>
<?php
foreach ($files_ex as $f)
{
    echo "<br>$f\n";
}
?>
</body>

</html>