How can PHP be used to create a file browser for all files on a server?

To create a file browser for all files on a server using PHP, you can use the `scandir()` function to scan a directory and retrieve a list of files. You can then loop through the list of files and display them as links in a simple HTML page.

<?php
// Specify the directory to scan
$directory = '/path/to/directory/';

// Get the list of files in the directory
$files = scandir($directory);

// Display the list of files as links
foreach($files as $file) {
    if ($file != '.' && $file != '..') {
        echo '<a href="' . $directory . $file . '">' . $file . '</a><br>';
    }
}
?>