if (preg_match ("/^[А-Яа-яЁё\w\s\.*+-]+$/i", $_FILES['file']['name']))

$blacklistExtentions = array(".php", ".php3", ".php4", ".sh");

foreach ($blacklistExtentions as $item) {
if(preg_match("/$item\$/i", $namefile)) {
echo '08'; //неверное расширение файла
exit();

if ($_FILES['file']['type'] == 'image/pjpeg' ||
$_FILES['file']['type'] == 'image/gif' ||
$_FILES['file']['type'] == 'image/jpeg' ||
$_FILES['file']['type'] == 'image/png')
{

img_resize ($filename, $filename, 420, 420);

$name = rand (1000, 10000) . '_bla_' . date ("Y-m-d H:i:s");