PHP Basic Directory Explorer List Files In Folder

<?php
$files = scandir(getcwd());
foreach($files as $file) {
    if ($file == 'index.php' or $file == '..' or $file == '.') {
    } else {
    $curl_size = round((filesize($file) / 1024), 1);
    $curl_name = basename($file);
    echo '<table border="1">';
    echo '<th>Filename</th><th>Extension</th><th>Size</th>';
    echo '<tr>';
    echo "<td><a href='" . $file . "'>" . $curl_name . "</a></td>";
    echo "<td><a href='" . $file . "'>." . pathinfo($file, PATHINFO_EXTENSION) . "</a></td>";
    echo "<td><a href='" . $file . "'>" . $curl_size . " kB</a></td></tr>";
    echo '</table>';
    }
}
?>