public static function clearFiles()
{
// clean database or test generated data for example
foreach (self::$_files as $file) {
if (is_file($file)) {
unlink($file);
}
}
// remove dir
$directories = array_reverse(self::$_directories);
foreach ($directories as $directory) {
if (is_dir($directory)) {
rmdir($directory);
}
}
// reset
self::$_files = array();
self::$_directories = array();
}
