How can PHP be used to allow clients to browse the server's target folder for file selection?

To allow clients to browse the server's target folder for file selection, you can use PHP to generate a list of files in the directory and display them as links for the clients to click on. This can be achieved by using the `scandir()` function to retrieve the list of files in the target folder and then looping through the results to display them as clickable links.

<?php
$targetFolder = 'path/to/target/folder';

$files = scandir($targetFolder);

foreach ($files as $file) {
    if ($file != '.' && $file != '..') {
        echo '<a href="' . $targetFolder . '/' . $file . '">' . $file . '</a><br>';
    }
}
?>