CSiteCheckerTest::check_cache

function check_cache()
{
	$dir = $_SERVER["DOCUMENT_ROOT"].BX_PERSONAL_ROOT."/cache";
	$file0 = $dir."/".md5(mt_rand());
	$file1 = $file0.".tmp";
	$file2 = $file0.".php";
	if (!file_exists($dir))
		mkdir($dir, BX_DIR_PERMISSIONS);

	return ($f = fopen($file1, 'wb')) && (fclose($f)) && (rename($file1,$file2)) && (unlink($file2));
}