Можно ли обойти такую проверку расширения?

как залить php?

// Validate file extension
$extension_whitelist = "asf,avi,bmp,fla,flv,gif,jpeg,jpg,mov,mpeg,mpg,png,tif,tiff,wmv";
$path_info = pathinfo($_FILES[$upload_name]['name']);
$file_extension = $path_info["extension"];

$is_valid_extension = false;
$allowedExtensions = explode(',', $extension_whitelist);

foreach ($allowedExtensions as $extension) {
if (strcasecmp($file_extension, str_replace(' ', '', $extension)) == 0) {
$is_valid_extension = true;
break;
}
}