Example

<?php
require_once 'System/Folders.php';

$sf = new System_Folders();

$arData = array(
'Username'         => $sf->getUserName(),
'Home'             => $sf->getHome(),
'Documents'        => $sf->getDocuments(),
'Shared documents' => $sf->getSharedDocuments(),
'Temp'             => $sf->getTemp(),
'Desktop'          => $sf->getDesktop(),
'AppData'          => $sf->getAppData(),
'Programs'         => $sf->getPrograms(),
'Windows'          => $sf->getWindows()
);

echo 'System: ' . $sf->getSys() . "\r\n";
var_dump($arData);
?>

<?php
require_once 'System/Folders/Cached.php';
$sf = new System_Folders_Cached();

//show the path of the config file
echo 'Config file: ' . $sf->getDefaultConfigFile() . "\r\n";

//load the stored settings from last time
$err = $sf->loadFromFile();

echo 'Home:      ' . $sf->getHome() . "\r\n";
echo 'Documents: ' . $sf->getDocuments() . "\r\n";

echo "\r\n";

$doc = $sf->getDocuments();
if (file_exists($doc)) {
    echo "Setting new Documents directory\r\n";
    //Set an own documents directory
    // and save the settings for next time
    $sf->setDocuments('/strange/path/to/MyDocuments/');
    $sf->saveToFile();
    echo 'New Documents directory: ' . $sf->getDocuments() . "\r\n";
    echo "Run this program again to reset the path to default\r\n";
} else {
    //unset the path
    echo "Unsetting the documents directory\r\n";
    $sf->setDocuments(null);
    $sf->saveToFile();
    echo 'New Documents directory: ' . $sf->getDocuments() . "\r\n";
}
?>