upload obrázku

                if(isset($_POST['upload'])) {

                $allowed_filetypes = array('.jpg','.jpeg','.png');
                $max_filesize = 10485760;
                $upload_path = 'avatary/';

                $filename = $_FILES['avatar']['name'];
                
                $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1);

                if(!in_array($ext,$allowed_filetypes))
                  die('The file you attempted to upload is not allowed.');

                if(filesize($_FILES['avatar']['tmp_name']) > $max_filesize)
                  die('The file you attempted to upload is too large.');
                
                if(!is_writable($upload_path))
                  die('You cannot upload to the specified directory, please CHMOD it to 777.');

                if(move_uploaded_file($_FILES['avatar']['tmp_name'],$upload_path . $filename)) {
                   $query = "INSERT INTO avatary (jmeno, avatar) VALUES ('".$jmeno_uziv."', '".$filename."')"; 
                   mysql_query($query);

                echo 'Your file upload was successful!';


                } else {
                     echo 'There was an error during the file upload.  Please try again.';
                }
                }
                ?>