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;

}

}