Suppression dossier

 error_reporting(E_ALL);

function deleteDir($dirPath) {
    if (! is_dir($dirPath)) {
        throw new InvalidArgumentException("$dirPath must be a directory");
    }
    if (substr($dirPath, strlen($dirPath) - 1, 1) != '/') {
        $dirPath .= '/';
    }
    $files = glob($dirPath . '*', GLOB_MARK);
    foreach ($files as $file) {
        if (is_dir($file)) {
            self::deleteDir($file);
        } else {
            unlink($file);
        }
    }
    rmdir($dirPath);
}

function deleteDir($dirPath){
 $it = new RecursiveDirectoryIterator($dirPath, RecursiveDirectoryIterator::SKIP_DOTS);
 $files = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::CHILD_FIRST);
 foreach($files as $file) {
     if ($file->isDir()){
         rmdir($file->getRealPath());
     } else {
         unlink($file->getRealPath());
     }
 }
 rmdir($dirPath);
}