non recursive create_folder

gistfile1.txt

function create_folder($path, $slug)
{
    $folderPath = $basePath = $path . $slug;
    $counter=0;
    while (file_exists($folderPath){
        $counter++;
        $folderPath = $basePath . "-$counter";
    }
    mkdir($folderPath); //Creates the folder
    $fn = $folderPath . '/listen.md'; //Sets the filename
    return $fn;
}