Untitled

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data">
    <input type="file" name="cover[]" multiple/>
    <input type="submit" value="Отправить">
</form>
</body>
</html>