Delete directory in PHP

Function to recursively delete a directory using PHP.

<?php
/**
 * Delete a file, or a folder and its contents (recursive algorithm)
 *
 * @author      Aidan Lister <aidan@php.net>
 * @version     1.0.3
 * @link        http://aidanlister.com/repos/v/function.rmdirr.php
 * @param       string   $dirname    Directory to delete
 * @return      bool     Returns TRUE on success, FALSE on failure
 */
function rmdirr($dirname)
{
    // Sanity check
    if (!file_exists($dirname)) {
        return false;
    }

    // Simple delete for a file
    if (is_file($dirname) || is_link($dirname)) {
        return unlink($dirname);
    }

    // Loop through the folder
    $dir = dir($dirname);
    while (false !== $entry = $dir->read()) {
        // Skip pointers
        if ($entry == '.' || $entry == '..') {
            continue;
        }

        // Recurse
        rmdirr($dirname . DIRECTORY_SEPARATOR . $entry);
    }

    // Clean up
    $dir->close();
    return rmdir($dirname);
}
?>