Untitled

<!DOCTYPE html>
<html>
<body>

<h1>Upload de imagens</h1>

<form id="form1" name="form1" method="post" action="upload.php" enctype="multipart/form-data">

   <input name="arquivo" type="file" id="arquivo" size="50" />

   <input type="submit" name="button" id="button" value="Enviar" />

</form>

</body>
</html>